| natural(adjective, characteristic, open, simple, plain) |
| spontaneous(noun, adjective, simple, easy, natural) |
| involuntary(noun, adjective, simple, reasonable, cold) |
| impulsive(noun, adjective, open, simple, easy) |
| intuitive(adjective, characteristic, reasonable, physical, common) |
| innate(adjective, characteristic, reasonable, physical, common) |
| instinctual(adjective, feeling, physical, natural, impulse) |
| reflex(noun, adjective, planned, ignorant, hidden) |
| automatic(adjective, simple, passionate, violent, cold) |
| unthinking(adjective, physical, careless, cold, natural) |
| mechanical(adjective, rude, careless, natural, thoughtless) |
| unconscious(adjective, simple, careless, cold, natural) |
| inherent(adjective, reasonable, natural, basic, automatic) |
| visceral(adjective, physical, natural, emotional, perceptive) |
| immediate(noun, adjective, spontaneous, automatic) |
| normal(adjective, characteristic, ordinary, distinctive, automatic) |
| unpremeditated(noun, adjective, rude, passionate, violent) |
| inborn(adjective, characteristic, reasonable, physical, common) |
| naive(adjective, open, simple, easy, innocent) |
| native(adjective, reasonable, ordinary, natural, automatic) |