nugacity
/njuːˈgæsɪtɪ/noun
(pl. -ies)［mass noun］
1- rare triviality; frivolity.〈罕〉琐碎; 轻浮。
1.1
- count noun a trivial or frivolous thing or idea琐事; 无聊的想法。
词源
late 16th cent.: from late Latin nugacitas, from Latin nugax, nugac- 'trifling， frivolous'.