| ingrained(adjective, natural, instinctive, automatic, involuntary) |
| instantaneous(adjective, impulsive, immediate, sudden) |
| intrinsic(adjective, natural, instinctive, automatic, involuntary) |
| intuitional(adjective, natural, instinctive, automatic, involuntary) |
| native(adjective, reasonable, ordinary, instinctive, automatic) |
| rooted(adjective, natural, instinctive, automatic, involuntary) |
| second-nature(adjective, instinctive, automatic, involuntary, reflex) |
| typical(adjective, ordinary, normal, instinctive, automatic) |
| unaffected(adjective, simple, easy, honest, plain) |
| unintentional(adjective, natural, chance, routine, impulsive) |
| volitional(adjective, feature, characteristic, free, regard) |
| volunteer(adjective, feature, characteristic, free, regard) |
| chosen(verb, adjective, feature, characteristic, free) |
| discretional(adjective, feature, characteristic, free, deliberate) |
| independent(adjective, feature, characteristic, free, deliberate) |
| intimate(adjective, simple, plain, straightforward, casual) |
| reflexive(adjective, impulsive, unwilling, obligatory, compulsory) |
| self-generated |
| simple(adjective, open, light, easy, pure) |
| snap(noun, adjective, light, free, simple) |