mechanical

1 done instantly and without conscious thought or decision the waiter's mechanical reply of “Everything on the menu is good” Synonyms instinctive, instinctual, involuntary, knee-jerk, mechanic, automatic, robotic, spontaneousRelated Words conditioned, natural, Pavlovian, reactive, reflex, simple, subliminal, unconscious, unforced, visceral; blind, inadvertent, unintended, unintentional, unwilling, unwitting; abrupt, quick, ready, sudden; ad-lib, extemporaneous, extempore, impromptu, improvised, offhand, offhanded, off-the-cuff, snap, spur-of-the-moment, unconsidered, unplanned, unpremeditated, unprepared, unprompted, unreasoned, unrehearsed, unstudied; casual, chance, chancy, haphazard, hasty, hit-or-miss, impetuous, impulsive, mindless, random, rashNear Antonyms calculated, conscious, cultivated, deliberate, designed, intended, intentional, predetermined, prepared, projected, refined, rehearsed, volitional, voluntary, willed, willful (or wilful); advised, aforethought, careful, considered, foresighted, forethoughtful, measured, meticulous, reasoned, studied, thoughtfulAntonyms nonmechanical

2 lacking in natural or spontaneous quality a somewhat mechanical vocal performance Synonyms affected, assumed, bogus, contrived, factitious, fake, false, feigned, forced, artificial, mock, phony (also phoney), plastic, pretended, pseudo, put-on, sham, simulated, spurious, strained, unnaturalRelated Words automatic, canned, concocted, fabricated, hokey, labored, manufactured, pat, unauthentic, unreal, unrealistic; double-dealing, empty, facile, hollow, hypocritical, insincere, left-handed, mealy, mealymouthed, two-faced, unctuous; exaggerated, histrionic, melodramatic, overacted, overdone, theatrical (also theatric); cute, cutesy, genteel, goody-goody, mincing, overrefined, simpering; conventional, formal, impersonal, inflexible, rigid, stiff, stylized, wooden; artful, calculated, conscious, cultivated, deliberate, premeditated, studiedNear Antonyms authentic, bona fide, real, realistic, right, true; honest, ingenuous, sincere, unpretending; easy, effortless, smooth; extemporaneous, impromptu, impulsive, instinctive, unconscious, unprompted, unrehearsed, unstudiedAntonyms artless, genuine, natural, spontaneous, unaffected, uncontrived, unfeigned, unforced