Synonyms for In-voluntary:

• adj.

  •automatic (adjective)
  • mechanical,
  • autogenetic,
  • unwilled,
  • natural,
  • routine,
  • unforced,
  • intuitive,
  • involuntary,
  • perfunctory.
  •forced (adjective)
  • enforced,
  • affected,
  • stiff,
  • insincere,
  • constrained,
  • false,
  • inflexible,
  • contrived,
  • artificial,
  • unnatural,
  • binding,
  • conscripted,
  • slave,
  • labored,
  • stringent,
  • Coerced,
  • peremptory,
  • bound,
  • coercive,
  • compelled,
  • wooden,
  • mandatory,
  • factitious,
  • rigid.
  •gut (adjective)
  • heartfelt,
  • innate,
  • deep-seated,
  • emotional,
  • inner,
  • visceral,
  • internal,
  • viscerous,
  • basic,
  • intimate,
  • interior.
  •impulsive (adjective)
  • extemporaneous,
  • rash,
  • careless,
  • offhand,
  • hasty,
  • quick,
  • headlong,
  • impetuous,
  • flaky,
  • unexpected,
  • swift,
  • sudden,
  • passionate,
  • mad,
  • up-and-down,
  • gone off deep end,
  • ad-lib,
  • devil-may-care,
  • hot-and-cold,
  • abrupt,
  • violent,
  • precipitate,
  • unpredictable,
  • jumping the gun,
  • unconsidered,
  • winging it.
  •instinctive (adjective)
  • Intuitional,
  • normal,
  • congenital,
  • accustomed,
  • rooted,
  • regular,
  • by seat of one's pants,
  • inborn,
  • native,
  • unlearned,
  • second-nature,
  • intrinsic,
  • inherent,
  • typical,
  • ingrained.
  •intuitive (adjective)
  • perceptive,
  • understood,
  • direct,
  • immediate,
  • unreflecting,
  • untaught.
  •involuntary (adjective)
  • obligatory,
  • habitual,
  • unpremeditated,
  • unconscious,
  • reflexive,
  • reluctant,
  • conditioned,
  • instinctive,
  • grudging,
  • will-less,
  • blind,
  • unprompted,
  • uncontrolled,
  • unwilling,
  • unintentional,
  • uncalculated,
  • automatic,
  • unwitting,
  • spontaneous,
  • reflex,
  • impulsive,
  • unintended,
  • begrudging,
  • instinctual,
  • compulsory,
  • forced,
  • knee-jerk,
  • Unmeditated,
  • unthinking.
  •mandatory (adjective)
  • essential,
  • imperative,
  • compelling,
  • de rigueur,
  • imperious,
  • Irremissible,
  • needful,
  • Compulsatory,
  • commanding,
  • requisite,
  • indispensable.
  •mechanical (adjective)
  • laborsaving,
  • programmed,
  • automated,
  • emotionless,
  • cursory,
  • impersonal,
  • lifeless,
  • matter-of-fact,
  • machine-driven,
  • cold,
  • fixed,
  • monotonous,
  • spiritless,
  • unchanging,
  • useful,
  • standardized,
  • stereotyped,
  • unfeeling.
  •natural (adjective)
  • legitimate,
  • customary,
  • uniform,
  • prevalent,
  • natal,
  • ordinary,
  • connatural,
  • indigenous,
  • constant,
  • looked for,
  • common,
  • universal,
  • probable,
  • Familiar,
  • typic,
  • counted on,
  • anticipated,
  • Ingenerate,
  • prevailing,
  • logical,
  • general,
  • reasonable,
  • characteristic,
  • Unacquired,
  • commonplace,
  • consistent,
  • relied on,
  • matter-of-course,
  • usual.
  •perfunctory (adjective)
  • laid-back,
  • unaware,
  • indifferent,
  • disinterested,
  • standard,
  • slipshod,
  • inattentive,
  • sketchy,
  • apathetic,
  • superficial,
  • phoning it in,
  • uninterested,
  • walking through it,
  • going through the motions,
  • unconcerned,
  • slovenly,
  • heedless,
  • lackadaisical,
  • stock,
  • negligent,
  • cool.
  •reflex (adjective)
  • responsive.
  •reluctant (adjective)
  • disinclined,
  • chary,
  • remiss,
  • loath,
  • afraid,
  • uncertain,
  • slow,
  • slack,
  • wary,
  • squeamish,
  • tardy,
  • shy,
  • backward,
  • cautious,
  • opposed,
  • calculating,
  • diffident,
  • recalcitrant,
  • circumspect,
  • queasy,
  • discouraged,
  • hanging back,
  • disheartened,
  • hesitating,
  • hesitant,
  • laggard,
  • uneager,
  • indisposed,
  • Demurring,
  • averse.
  •spontaneous (adjective)
  • extempore,
  • uncontrived,
  • casual,
  • simple,
  • impromptu,
  • unconstrained,
  • improvised,
  • inevitable,
  • free,
  • voluntary,
  • unsophisticated,
  • unplanned,
  • unavoidable,
  • irresistible,
  • unpremediated,
  • free spirited,
  • up front,
  • down,
  • from the hip,
  • break loose,
  • uncompelled,
  • unbidden,
  • Unartful,
  • off top of head,
  • unstudied,
  • off-the-cuff.
  •unconscious (adjective)
  • gut,
  • latent,
  • Undeliberate,
  • lost,
  • subconscious,
  • inadvertent,
  • suppressed,
  • unheeding,
  • unmindful,
  • accidental,
  • unrealized,
  • repressed,
  • subliminal.
  •unintentional/unintended (adjective)
  • fortuitous,
  • haphazard,
  • chance,
  • erratic,
  • purposeless,
  • unthought,
  • undesigned,
  • undevised,
  • aimless,
  • unforeseen,
  • random.
  •unwilling (adjective)
  • resistant,
  • against the grain,
  • Against,
  • contrary,
  • unaccommodating,
  • disobliging,
  • uninclined,
  • uncooperative,
  • indocile,
  • evasive,
  • shrinking,
  • wayward,
  • unready,
  • unobliging,
  • malcontent,
  • uncheerful,
  • unenthusiastic,
  • refractory,
  • unwishful.
  •unwitting (adjective)
  • incognizant,
  • forgetful,
  • uninstructed,
  • numb,
  • oblivious,
  • senseless,
  • uninformed,
  • Inconversant,
  • Unmeant,
  • innocent,
  • unfamiliar,
  • unknowing,
  • unacquainted,
  • comatose,
  • unsuspecting,
  • ignorant.

Antonyms for In-voluntary:

• adj.

  • automatic
    manual, thought-out, unnatural, stilted, by hand.
  • forced
    spontaneous, noncompulsory.
  • gut
    outside, physical, material.
  • impulsive
    sensible, thoughtful, cautious, wise, Considering, premeditative, calm, heedful.
  • instinctive
    extrinsic, Meditated, reasonable, learned, acquired.
  • intuitive
    reasoned, taught, calculated.
  • involuntary
    intended, voluntary, deliberate, intentional, conscious, planned, unforced.
  • mandatory
    nonessential, optional, free, inessential, unnecessary, secondary.
  • mechanical
    feeling.
  • natural
    extraordinary, pretended, fixed, unsteady, artificial, abnormal, unreasonable, infrequent, modified, affected, unusual, uncommon, rare, exceptional, foreign, changing, atypical, inconsistent, particular, irregular, refined, different.
  • perfunctory
    complete, thorough, precise, detailed, careful.
  • reluctant
    certain, bold, rash, definite, eager, enthusiastic, indiscreet, willing, uncareful, confident, incautious, ready, heedless, anxious, sure, careless.
  • spontaneous
    premeditated.
  • unconscious
    aware, knowing, awake, decided.
  • unintentional
    expected.
  • unwilling
    prepared.
  • unwitting
    witting, Realizing, attentive.