Definition for Thoughtless:

• Without thought; careless; inattentive.

Synonyms for Thoughtless:

• adj.

  •absent-minded, unobservant (adjective)
  • doltish,
  • ill-considered,
  • bovine,
  • silly,
  • puerile,
  • loony,
  • lamebrained,
  • undiscerning,
  • incomprehensible,
  • empty-headed,
  • mindless,
  • injudicious,
  • inadvertent,
  • inane,
  • unthinking,
  • dull,
  • remiss,
  • obtuse,
  • stupid,
  • senseless,
  • ill-advised,
  • inept,
  • Irreflective,
  • careless,
  • confused,
  • foolish,
  • unreasoning,
  • regardless,
  • witless,
  • irrational,
  • imprudent,
  • flighty,
  • vacuous,
  • unreflective,
  • unreasonable.
  •accidental (adjective)
  • inadvertent.
  •all (adjective)
  • unthinking,
  • uncaring.
  •blind (adjective)
  • unperceptive,
  • unperceiving,
  • unreasoning,
  • unconscious,
  • injudicious,
  • purblind,
  • undiscerning,
  • uncomprehending.
  •despicable (adjective)
  • shabby.
  •hasty (adjective)
  • unpremeditated.
  •headlong (adjective)
  • headlong.
  •ill-advised (adjective)
  • ill-judged.
  •improvident (adjective)
  • thriftless,
  • uneconomical.
  •inattentive (adjective)
  • detached,
  • Disregardful,
  • unwatchful,
  • inattentive,
  • unconcerned,
  • Ignoring,
  • faraway,
  • befuddled,
  • napping,
  • absent,
  • unconscious,
  • uninterested,
  • aloof,
  • Unobserving,
  • inadvertent,
  • negligent,
  • heedless,
  • wandering,
  • disinterested,
  • distracted,
  • unnoticing,
  • dreamy,
  • Inobservant,
  • unmindful,
  • unheedful,
  • Absent-minded,
  • preoccupied,
  • oblivious.
  •inconsiderate (adjective)
  • asocial,
  • antisocial,
  • undiplomatic,
  • selfish,
  • neglectful,
  • unmindful,
  • brash,
  • indifferent,
  • heedless,
  • egocentric,
  • inattentive,
  • apathetic,
  • rude,
  • unrefined,
  • unkind,
  • indiscreet,
  • self-centered,
  • incautious,
  • Hot-headed,
  • unceremonious,
  • deaf,
  • blind,
  • rash,
  • listless,
  • boorish,
  • discourteous,
  • negligent,
  • uncaring,
  • unconcerned,
  • ungracious,
  • indelicate,
  • unheeding,
  • impolite,
  • reckless,
  • insensitive,
  • madcap,
  • short,
  • primitive,
  • tactless,
  • hasty,
  • sharp.
  •indifferent (adjective)
  • blind.
  •neglectful (adjective)
  • unmindful,
  • careless,
  • neglectful,
  • inadvertent,
  • bumbling,
  • shoddy,
  • haphazard,
  • senile,
  • clumsy,
  • slipshod,
  • inattentive,
  • slapdash,
  • sloppy,
  • remiss,
  • hit-and-miss,
  • perfunctory,
  • forgetful,
  • inconsiderate,
  • reckless,
  • slovenly,
  • unheedful,
  • derelict,
  • negligent,
  • Disregardful.
  •rash (adjective)
  • audacious,
  • brash,
  • desperado,
  • daring,
  • precipitant,
  • hotheaded,
  • reckless,
  • foolhardy,
  • unconsidered,
  • imprudent,
  • impulsive,
  • hectic,
  • rash,
  • irresponsible,
  • injudicious,
  • brazen,
  • impetuous,
  • careless,
  • unheedful,
  • incautious,
  • daredevil,
  • breakneck.
  •reckless (adjective)
  • brash,
  • wild,
  • harum-scarum,
  • irresponsible,
  • heedless,
  • unmindful,
  • careless,
  • imprudent,
  • nonchalant,
  • inattentive,
  • indifferent,
  • frantic,
  • rash,
  • reckless,
  • foolhardy,
  • negligent,
  • hectic,
  • daring.
  •sharp (adjective)
  • sharp.
  •short (adjective)
  • short.
  •thoughtless (adjective)
  • brainless,
  • illogical,
  • unthoughtful,
  • unoccupied,
  • empty-headed,
  • inane,
  • unthinking,
  • fatuous,
  • unreasonable,
  • vacant,
  • blank,
  • mindless,
  • vacuous.
  •unadvised (adjective)
  • Hot-headed,
  • unadvised.
  •ungrateful (adjective)
  • thankless,
  • heedless,
  • unthankful,
  • ungrateful,
  • unappreciative.
  •unkind (adjective)
  • Hard-hearted,
  • inhumane,
  • coldhearted.

• n.

  •
  • confused,
  • heavy,
  • dull,
  • high-handed,
  • insensible,
  • Feeble-minded,
  • incomprehensible,
  • loony,
  • flighty,
  • heavy-handed,
  • undiplomatic,
  • shameless,
  • bovine,
  • dizzy,
  • inept,
  • reasoning,
  • doltish,
  • heartless,
  • obtuse,
  • insensitive,
  • puerile,
  • witless,
  • babbling,
  • senseless,
  • impersonal,
  • irrational,
  • nutty,
  • foolish,
  • sappy,
  • bewildered.
  •
  • feckless.
  •
  • courtesy.
  •inconsiderate (noun)
  • apathetic,
  • rude,
  • unrefined,
  • boorish,
  • unheeding,
  • discourteous,
  • antisocial,
  • indiscreet,
  • deaf,
  • self-centered,
  • primitive,
  • egocentric,
  • selfish,
  • blind.

• Other synonyms:

  •
  • high-handed,
  • undiplomatic,
  • heartless,
  • feckless.
  •
  • shameless,
  • impersonal,
  • heavy-handed.
  •
  • insensitive,
  • gaily.
  •
  • insensible.
  •abrupt
  • blunt.
  •inconsiderate
  • shabby.
  •purposeless
  • aimless.
  •Other relevant words:
  • cockeyed,
  • senseless,
  • featherbrained,
  • Incogitant,
  • flighty,
  • brusque,
  • fool,
  • Addle-brained,
  • dissipated,
  • misguided,
  • frigid,
  • unseeing,
  • unmerciful,
  • indolent,
  • unchristian,
  • Hot-headed,
  • dilatory,
  • straight,
  • fluttery,
  • shiftless,
  • tight-fisted,
  • happy-go-lucky,
  • scatterbrained,
  • artless,
  • nonintellectual,
  • casual,
  • brute,
  • puerile,
  • thickheaded,
  • uncharitable,
  • cursory,
  • gormless,
  • feebleness,
  • heedlessness,
  • ill-advised,
  • thoughtlessness,
  • flinty,
  • unselective,
  • Fatuitous,
  • precipitant,
  • unaffected,
  • dotty,
  • inattention,
  • nonchalance,
  • unappreciated,
  • flippant,
  • gaily,
  • facetious,
  • unaccommodating,
  • Respectless,
  • short,
  • arbitrary,
  • curt,
  • Hard-hearted,
  • not clear,
  • myopic,
  • hasty,
  • unwise,
  • uncomplicated,
  • beguiled,
  • apathetic,
  • unsparing,
  • witless,
  • impersonal,
  • brutal,
  • unheeding,
  • relaxed,
  • featherheaded,
  • discourteous,
  • inadept,
  • unready,
  • absurd,
  • inapt,
  • unpropitious,
  • insouciant,
  • temerarious,
  • incurious,
  • ludicrous,
  • coarse,
  • foolhardiness,
  • barbarous,
  • doltish,
  • rattlebrained,
  • hoity-toity,
  • dispassionate,
  • tough,
  • merge,
  • tight,
  • Gulled,
  • bluff,
  • dumb,
  • brutish,
  • hard,
  • egocentric,
  • unthanking,
  • If,
  • Light-hearted,
  • merciless,
  • dazed,
  • insensible,
  • impervious,
  • improvident,
  • dashing,
  • imbecile,
  • aimless,
  • unwary,
  • inhuman,
  • shabby,
  • courtesy,
  • guileless,
  • inflexible,
  • pedestrian,
  • neglect,
  • insane,
  • shortsighted,
  • silly,
  • disregard,
  • gaga,
  • fond,
  • gruff,
  • grudging,
  • light,
  • nonreflecting,
  • non-discriminatory,
  • bigoted,
  • get along,
  • supercilious,
  • uncalled-for,
  • unhelpful,
  • pitiless,
  • goofy,
  • scornful,
  • direct,
  • feckless,
  • inexorable,
  • overconfident,
  • unbending,
  • imprudence,
  • recklessness,
  • passive,
  • screwy,
  • under the influence,
  • unsusceptible,
  • imbecilic,
  • unwitting,
  • Befooled,
  • precipitate,
  • hare-brained,
  • rough-spoken,
  • half-assed,
  • jocular,
  • unkindly,
  • primitive,
  • indelicate,
  • inattentiveness,
  • malevolent,
  • apish,
  • candid,
  • unreflecting,
  • impassive,
  • Misadvised,
  • undiplomatic,
  • laxity,
  • coldhearted,
  • uncooperative,
  • giddy,
  • offhand,
  • offhanded,
  • unwatchful,
  • lumpen,
  • wrong-headed,
  • besotted,
  • hot-tempered,
  • uncivil,
  • unmoved,
  • maladroit,
  • flaky,
  • grasshopper,
  • loony,
  • light-headed,
  • mix,
  • inadvisable,
  • lazy,
  • gauche,
  • sentimental,
  • rigid,
  • loose,
  • preposterous,
  • unify,
  • inconsequential,
  • foolish,
  • straightforward,
  • inanity,
  • impertinent,
  • regardless,
  • Plain-spoken,
  • ruthless,
  • adventurous,
  • awkward,
  • unpremeditated,
  • carelessness,
  • Daffy,
  • savage,
  • Unsensible,
  • tranquil,
  • dangerous,
  • unaware,
  • lumpish,
  • easygoing,
  • negligence,
  • abrupt,
  • inefficient,
  • thick-skinned,
  • moronic,
  • heartless,
  • foolheaded,
  • Uncomplaisant,
  • untactful,
  • dawdling,
  • nervy,
  • asinine,
  • shameless,
  • thick,
  • penny-pinching,
  • absorbed,
  • irrational,
  • inept,
  • unadvised,
  • unreasoning,
  • unperceiving,
  • harsh,
  • cold,
  • rattlepated,
  • purblind,
  • ungracious,
  • ill-considered,
  • idiotic,
  • non-selective,
  • limited,
  • stern,
  • gutsy,
  • bungling,
  • confused,
  • blind,
  • ruffle,
  • rough,
  • undiscriminating,
  • confuse,
  • poor,
  • doting,
  • dizzy,
  • Stony-hearted,
  • uncivilized,
  • inconsiderateness,
  • unsympathetic,
  • unfastidious,
  • unforgiving,
  • illiberal,
  • bovine,
  • headlong,
  • futile,
  • Unobserving,
  • Unsolicitous,
  • batty,
  • tyrannical,
  • easy going,
  • unmannerly,
  • uncritical,
  • harebrained,
  • nirvanic,
  • fool around,
  • selfish,
  • crazy,
  • inhumane,
  • unfeeling,
  • caught napping,
  • unrelenting,
  • Undextrous,
  • unconsidered,
  • laughable,
  • heavy,
  • crude,
  • capricious,
  • reasoning,
  • pointlessness,
  • uncouth,
  • lackadaisical,
  • impudent,
  • maudlin,
  • nonsensical,
  • unskilful,
  • cheeky,
  • narrow,
  • perverse,
  • boorish,
  • wet,
  • callous,
  • harum-scarum,
  • Cold-hearted,
  • unladylike,
  • unguarded,
  • dull,
  • devil-may-care,
  • stingy,
  • unintelligent,
  • diverted,
  • unrefined,
  • vain,
  • forgetfulness,
  • ill-mannered,
  • if only,
  • ill-judged,
  • harebrain,
  • distrait,
  • socialize,
  • mercenary,
  • unskillful,
  • possessive,
  • asocial,
  • wrong,
  • indiscretion,
  • relentless,
  • gay,
  • babbling,
  • integrate,
  • delusional,
  • Unideal,
  • parsimonious,
  • volatile,
  • cool,
  • kooky,
  • sudden,
  • Inobservant,
  • uneconomical,
  • slack,
  • outspoken,
  • venturesome,
  • associate,
  • coalesce,
  • bewildered,
  • conflate,
  • unfussy,
  • inappropriate,
  • delinquent,
  • uncaring,
  • emotionless,
  • unfacile,
  • uncalculating,
  • degage,
  • niggardly,
  • impolitic,
  • physical,
  • inexpert,
  • unserious,
  • quick-tempered,
  • deaf,
  • tomfool,
  • unsound,
  • stupid,
  • Skill-less,
  • slow,
  • wrecking,
  • carefree,
  • mingle,
  • desegregate,
  • Feather-brained,
  • high-handed,
  • dismissive,
  • quixotic,
  • meld,
  • wacky,
  • superficial,
  • intolerant,
  • vegetative,
  • cruel,
  • thriftless,
  • nutty,
  • ridiculous,
  • incomprehensible,
  • unintellectual,
  • severe,
  • amalgamate,
  • unsophisticated,
  • unconscientious,
  • meddle,
  • ill-bred,
  • unaffectionate,
  • calm,
  • undiscerning,
  • belittling,
  • inexpedient,
  • instinctive,
  • miserly,
  • Giddy-brained,
  • ungentlemanly,
  • Rattle-brained,
  • dippy,
  • blunt,
  • sappy,
  • unobliging,
  • infatuated,
  • unmannered,
  • penurious,
  • unobservant,
  • shallow,
  • Quietistic,
  • unprepared,
  • ungenerous,
  • mad,
  • obtuse,
  • Feeble-minded,
  • sharp,
  • tactless,
  • Neglecting,
  • unyielding,
  • listless,
  • rude,
  • insensate,
  • Irreflective,
  • abstracted,
  • Unapt,
  • untouched,
  • mediocre,
  • Giddy-headed,
  • antisocial,
  • short-sighted,
  • unproficient,
  • madcap,
  • frank,
  • unkind,
  • disrespectful,
  • uncomprehending,
  • barbarian,
  • undexterous,
  • unnoting,
  • daft,
  • join,
  • but,
  • Inexpectant,
  • frivolous,
  • absentminded,
  • trivial,
  • untroubled,
  • fuddled,
  • mean,
  • bold,
  • unprogressive,
  • heavy-handed,
  • Unpolitic,
  • unimaginative,
  • unworried,
  • combine,
  • Addle-pated,
  • unceremonious,
  • indiscriminate,
  • extravagant,
  • incaution,
  • indiscreet,
  • buffoonish,
  • material,
  • far-fetched,
  • insensitive,
  • credulous,
  • Unthrifty,
  • unreflective,
  • lamebrained,
  • rashness,
  • promiscuous,
  • empty,
  • Unhandsome,
  • airy,
  • unperceptive,
  • narrow-minded,
  • impolite,
  • reasonless,
  • barbaric,
  • unnoticing,
  • uncompromising,
  • self-centered,
  • Unideaed.

Antonyms for Thoughtless:

• adj.

  • absent-minded, unobservant
    cautious, careful, reasonable, intelligent, responsible, sensible, rational, wise, prudent.
  • all
    thoughtful.
  • inconsiderate
    considerate, mindful, thoughtful, refined, kind, observant, thinking, mannerly, sophisticated, unselfish, attentive, polite, Heeding.
  • Other antonyms:
    modest, felicitous, wide-awake, humble, correct, decent, right, yielding, gallant, lost, appropriate, graceful, acceptable, courtly, suitable, becoming, respectable, proper, genial, elegant, hospitable, deferential, ready, submissive, chivalrous, prompt, alert, fit, befitting, ceremonious, affable, seemly, fitting, sociable, on hand, meet, unassertive, friendly, refined, cordial, dutiful, meek, respectful, decorous.