instinctive Synonyms

natural automatic inherent innate spontaneous unlabored unlearned unstudied unthinking unwilled unwitting unconscious unconditioned primordial reflex reflexed reflexive splanchnic subconscious subjective unbidden visceral voluntary zoic unforced unintentional deep-seated unpremeditated instinctual subliminal unprompted viscerally nonrepresentative nonrational inbuilt zooidal zoological untaught primaeval nonobjective conditioned response knee jerk built-in gone off deep end primeval primal gut habitual hereditary immanent