Synonyms for Irresponsible:

• adj.

  •careless, reckless (adjective)
  • capricious,
  • carefree,
  • devil-may-care,
  • feckless,
  • fickle,
  • flighty,
  • fly-by-night,
  • giddy,
  • harebrained,
  • ill-considered,
  • immature,
  • immoral,
  • incautious,
  • lax,
  • loose,
  • no-account,
  • rash,
  • scatterbrained,
  • shiftless,
  • thoughtless,
  • unaccountable,
  • unanswerable,
  • undependable,
  • unpredictable,
  • unreliable,
  • unstable,
  • untrustworthy,
  • wild,
  • uncareful.
  •changeable (adjective)
  • flighty,
  • mercurial,
  • mutable,
  • shifting,
  • unsteady,
  • changeful.
  •feckless (adjective)
  • good-for-nothing,
  • ineffective,
  • uncareful.
  •foolish (adjective)
  • harebrained,
  • dippy.
  •insane (adjective)
  • gaga,
  • loco,
  • moonstruck.
  •invulnerable (adjective)
  • immune.
  •irresolute (adjective)
  • ambivalent,
  • capricious,
  • changeable,
  • erratic,
  • fickle,
  • fly-by-night,
  • halfhearted,
  • hesitant,
  • impulsive,
  • inconsistent,
  • indecisive,
  • infirm,
  • insipid,
  • irresolute,
  • shifty,
  • shrinking,
  • shy,
  • spineless,
  • tentative,
  • uncertain,
  • undecided,
  • undependable,
  • unresolved,
  • unsure,
  • unwilling,
  • vacillating,
  • volatile,
  • watery,
  • weak,
  • yellow,
  • Flitting,
  • Shilly-shally,
  • dillydallying,
  • double-minded.
  •rash (adjective)
  • audacious,
  • brash,
  • brazen,
  • breakneck,
  • careless,
  • daredevil,
  • daring,
  • desperado,
  • foolhardy,
  • hectic,
  • hotheaded,
  • impetuous,
  • imprudent,
  • incautious,
  • injudicious,
  • rash,
  • reckless,
  • thoughtless,
  • unheedful,
  • impulsive.
  •reckless (adjective)
  • frantic,
  • heedless,
  • inattentive,
  • indifferent,
  • negligent,
  • nonchalant,
  • unmindful,
  • wild,
  • brash,
  • careless,
  • daring,
  • foolhardy,
  • harum-scarum,
  • hectic,
  • imprudent,
  • rash,
  • reckless,
  • thoughtless.

• n.

  •
  • absurd,
  • childish,
  • extreme,
  • irrational,
  • perverse,
  • ridiculous,
  • unreasonable,
  • wrong.
  •
  • foolish,
  • hasty,
  • ill-considered,
  • mindless,
  • shallow,
  • unconcerned,
  • undiscriminating,
  • unthinking.
  •irresponsible (noun)
  • carefree,
  • devil-may-care,
  • do-nothing,
  • feckless,
  • flighty,
  • freewheeling,
  • happy-go-lucky,
  • harum-scarum,
  • head-in-the-clouds,
  • idle,
  • loose,
  • scatterbrained,
  • slaphappy,
  • trigger-happy,
  • unaccountable,
  • unreliable.
  •untrustworthy (noun)
  • giddy,
  • immoral,
  • lax,
  • shiftless,
  • unpredictable,
  • unstable.

• Other synonyms:

  •
  • absurd,
  • absurdly,
  • blithe,
  • blithely,
  • bumbling,
  • childish,
  • disorganized,
  • fanciful,
  • farcical,
  • fatuous,
  • grotesque,
  • ill-advised,
  • ill-conceived,
  • ill-considered,
  • ill-judged,
  • illogical,
  • immoderate,
  • impolitic,
  • impractical,
  • improvident,
  • inadvisable,
  • inane,
  • indiscreet,
  • indiscriminate,
  • intemperate,
  • irrational,
  • merrily,
  • mindless,
  • myopic,
  • nonsensical,
  • perverse,
  • rudderless,
  • senseless,
  • shallow,
  • starry-eyed,
  • unconsidered,
  • undiscriminating,
  • unjustifiable,
  • unreasonable,
  • unsound,
  • unwise,
  • vacuous,
  • wrong,
  • airy-fairy,
  • wrong-headed.
  •
  • extreme,
  • foolish,
  • unthinking.
  •
  • automatically.
  •
  • lightly,
  • mad,
  • unconcerned.
  •guileful
  • untrustworthy.
  •Other relevant words:
  • absolute,
  • absurd,
  • absurdly,
  • adrift,
  • adventurous,
  • afloat,
  • aimless,
  • airy,
  • alternating,
  • amorphous,
  • arbitrary,
  • arrogant,
  • asinine,
  • at liberty,
  • authoritative,
  • automatically,
  • babyish,
  • balmy,
  • barmy,
  • blameworthy,
  • blithe,
  • blithely,
  • bold,
  • bootless,
  • bumbling,
  • carefree,
  • carelessly,
  • casual,
  • changeful,
  • chartered,
  • cheeky,
  • childish,
  • cockamamie,
  • cockamamy,
  • compulsory,
  • controlling,
  • corrupt,
  • cowboy,
  • crazy,
  • crooked,
  • cuckoo,
  • cursory,
  • daft,
  • dangerous,
  • delinquent,
  • derelict,
  • despotic,
  • despotical,
  • desultory,
  • devil-may-care,
  • dilatory,
  • dishonest,
  • disloyal,
  • disobedient,
  • disorganized,
  • disreputable,
  • dissipated,
  • dissolute,
  • dizzy,
  • do-nothing,
  • domineering,
  • dotty,
  • dubious,
  • dull,
  • dumb,
  • eccentric,
  • exacting,
  • excusable,
  • excused,
  • exempt,
  • extravagant,
  • extreme,
  • faithless,
  • fanciful,
  • farcical,
  • fast,
  • fatuous,
  • favored,
  • feckless,
  • fitful,
  • flickering,
  • flighty,
  • flimsy,
  • flip,
  • flippant,
  • fluctuating,
  • foolish,
  • foolishly,
  • frantically,
  • freakish,
  • free,
  • freewheeling,
  • frivolous,
  • gaga,
  • giddy,
  • good-for-nothing,
  • gormless,
  • grotesque,
  • gutsy,
  • half-baked,
  • haphazard,
  • happy-go-lucky,
  • harebrained,
  • harum-scarum,
  • hastily,
  • hasty,
  • haughty,
  • head-in-the-clouds,
  • headstrong,
  • heady,
  • heedlessly,
  • idiotic,
  • idle,
  • ill-advised,
  • ill-conceived,
  • ill-considered,
  • ill-judged,
  • illogical,
  • imbecilic,
  • immature,
  • immoderate,
  • immoral,
  • immune,
  • impetuously,
  • impolitic,
  • impractical,
  • improvident,
  • imprudently,
  • inadvisable,
  • inane,
  • incautiously,
  • inconsequential,
  • inconsiderate,
  • inconstant,
  • indecorous,
  • indiscreet,
  • indiscriminate,
  • indolent,
  • ineffective,
  • ineffectual,
  • inexpedient,
  • infantile,
  • injudiciously,
  • insane,
  • insignificant,
  • insubordinate,
  • intemperate,
  • irrational,
  • irregular,
  • irresponsibly,
  • judgmental,
  • juvenile,
  • kamikaze,
  • lackadaisical,
  • laughable,
  • lavish,
  • lawless,
  • lax,
  • lazy,
  • lecherous,
  • licensed,
  • licentious,
  • light,
  • light-headed,
  • lightly,
  • loco,
  • loose,
  • ludicrous,
  • lustful,
  • mad,
  • madcap,
  • mazy,
  • mercurial,
  • merrily,
  • mindless,
  • moody,
  • moonstruck,
  • moronic,
  • mutable,
  • mutinous,
  • myopic,
  • ne'er-do-well,
  • neglectful,
  • nervy,
  • no-account,
  • nonsensical,
  • nutty,
  • otiose,
  • peremptory,
  • perfunctory,
  • permitted,
  • perverse,
  • pointless,
  • precipitately,
  • preposterous,
  • privileged,
  • profligate,
  • promiscuous,
  • puerile,
  • questionable,
  • rakish,
  • rambling,
  • rampant,
  • rashly,
  • recklessly,
  • released,
  • remiss,
  • restless,
  • ridiculous,
  • risible,
  • roving,
  • rudderless,
  • scatterbrained,
  • screwy,
  • self-indulgent,
  • self-willed,
  • senseless,
  • shady,
  • shallow,
  • shapeless,
  • sharp,
  • shifting,
  • shiftless,
  • shuffling,
  • silly,
  • skittish,
  • slack,
  • slapdash,
  • slaphappy,
  • slight,
  • slipshod,
  • sloppy,
  • slothful,
  • slovenly,
  • spasmodic,
  • spontaneously,
  • starry-eyed,
  • stupidly,
  • summary,
  • sybaritic,
  • temerarious,
  • thoughtlessly,
  • timid,
  • treacherous,
  • trigger-happy,
  • trivial,
  • tyrannical,
  • unaccountable,
  • unambitious,
  • unanswerable,
  • unbound,
  • unbridled,
  • uncaring,
  • unchecked,
  • unconcerned,
  • unconscientious,
  • unconsidered,
  • uncontrollable,
  • uncontrollably,
  • uncontrolled,
  • uncritical,
  • uncurbed,
  • undisciplined,
  • undiscriminating,
  • unencumbered,
  • unenterprising,
  • unfaithful,
  • unfastidious,
  • unfixed,
  • ungoverned,
  • uninspired,
  • unjustifiable,
  • unmotivated,
  • unpredictable,
  • unreasonable,
  • unreliable,
  • unrestrained,
  • unruly,
  • unselective,
  • unsettled,
  • unsound,
  • unstable,
  • unsteady,
  • unthinking,
  • untroubled,
  • untrustworthy,
  • untrusty,
  • unwise,
  • unwisely,
  • unworried,
  • vacuous,
  • vagrant,
  • variable,
  • venturesome,
  • wandering,
  • wanton,
  • wavering,
  • wavy,
  • wayward,
  • whimsical,
  • wildcat,
  • wildly,
  • wilful,
  • willful,
  • wishy-washy,
  • wrong,
  • Addle-brained,
  • Addle-pated,
  • Disregardful,
  • Excepted,
  • Exempted,
  • Feather-brained,
  • Feeble-minded,
  • Pococurante,
  • Rattle-brained,
  • Reinless,
  • Trustless,
  • Vicissitudinary,
  • Vicissitudinous,
  • hell-for-leather,
  • Crack-brained,
  • Sophomoric,
  • Spared,
  • dippy,
  • airy-fairy,
  • bird-brained,
  • cock-eyed,
  • wrong-headed,
  • Favoured,
  • Unreined,
  • Unstaid,
  • Unsteadfast,
  • stupid,
  • unfussy,
  • under the influence,
  • uncareful,
  • hare-brained,
  • not responsible,
  • non-discriminatory,
  • not to be relied upon,
  • not to be trusted,
  • unliable,
  • scot-free,
  • wavery,
  • non-selective.

Antonyms for Irresponsible:

• adj.

  • all
    responsible.
  • careless, reckless
    accountable, careful, liable, reliable, responsible, trustworthy.
  • Other antonyms:
    accountable, amenable, answerable, careful, cautious, circumspect, complaisant, compliant, conditional, constitutional, contingent, docile, ductile, gentle, heedful, humble, lenient, liable, limited, lowly, meek, mild, overcareful, overcautious, responsible, submissive, timid, trustworthy, yielding.

• Other antonyms:

  • n. t.
    accountable, amenable, answerable, careful, cautious, circumspect, dependable, liable, mature, obligated, overcareful, overcautious, reliable, responsible, sensible, serious, timid, trustworthy, trusty, level-headed.