| guts(noun, viscera, splanchnic, internal organs) |
| heart(noun, adjective, inside, interior, inner) |
| impulsive(adjective, natural, instinctive, automatic, involuntary) |
| inbred(adjective, intimate, secret, private, penetrating) |
| mechanical(adjective, natural, instinctive, automatic, innate) |
| normal(adjective, natural, instinctive, automatic, innate) |
| regular(adjective, natural, instinctive, automatic, innate) |
| remote(adjective, inside, central, interior, inner) |
| soulful(adjective, interior) |
| typical(adjective, natural, instinctive, automatic, innate) |
| unlearned(adjective, natural, instinctive, automatic, innate) |
| unmeditated(adjective, natural, instinctive, automatic, involuntary) |
| unpremeditated(adjective, natural, instinctive, automatic, involuntary) |
| unprompted(adjective, natural, instinctive, automatic, innate) |
| affectional(adjective, interior) |
| appendical(adjective, interior) |
| belly(adjective, stomach, viscera, abdominal) |
| by seat of one's pants(expression, idiom, instinctive, automatic, reflex) |
| carnal(adjective, body, physical, instinctive, bodily) |
| centralized(adjective, inside, interior, inner, internal) |