| sex drive(expression, reproduction, feeling, behavior) |
| pure intuition(expression, sense, behavior, reaction) |
| survival instinct(expression, struggle, life, instinct) |
| destructive instinct(expression, feeling, behavior, destruction) |
| killer instinct(expression, kill, instinct, capability) |
| primitive behaviour(expression, sense, conduct, instinct) |
| primitiveness(noun, behavior, mindlessness, instinctivity) |
| primitivity(noun, behavior, mindlessness, instinctivity) |
| sixth sense(expression, ability, sense, instinct) |
| base instincts(expression, feeling, behavior, capability) |
| dark instincts(expression, behavior, instinct, capability) |
| gregarious instinct(expression, sense, behavior, mindlessness) |
| innate behaviour(expression, reaction, instinct, capability) |
| instinct character(expression, reaction, instinct, capability) |
| intuition(noun, ability, sense, instinct) |
| gut reaction(expression, ability, sense, instinct) |
| impulse(noun, ability, sense, instinct) |
| aggression instinct(expression, anger, sense, behavior) |
| instinctive movements(expression, ability, instinct, intuition) |
| complementary instincts(expression, assistance, capability, aptitude) |