| unseriousness(noun, state, emotion, sentiment) |
| manner(noun, attitude, conduct, response) |
| attitude(noun, conduct, manner, response) |
| behavior(noun, attitude, conduct, manner, response) |
| levity(noun, state, emotion, sentiment) |
| unimportance(noun, importance, triviality, insignificance, worthlessness) |
| conduct(noun, attitude, manner, response) |
| demeanor(noun, attitude, conduct, manner, response) |
| inconsequence(noun, importance, triviality, insignificance, worthlessness) |
| insignificance(noun, importance, triviality, worthlessness) |
| bearing(noun, attitude, conduct, manner, response) |
| demeanour(noun, attitude, conduct, manner, response) |
| poise(noun, attitude, conduct, manner, response) |
| reaction(noun, attitude, conduct, manner, response) |
| behaviour(noun, attitude, conduct, manner, response) |
| deportment(noun, attitude, conduct, manner, response) |
| flippancy(noun, state, emotion, sentiment) |
| response(noun, attitude, conduct, manner) |
| triviality(noun, importance, insignificance, worthlessness) |
| comportment(noun, attitude, conduct, manner, response) |