inactivityn.

英 ,ɪnæk'tɪvɪtɪ | 美 ,ɪnæk'tɪvəti

中文n. 静止；不活泼；休止状态；不放射性

词根词源

inactivity (n.)1640s, from in- (1) "not, opposite of" + activity. Phrase masterly inactivity attested by 1791.

关键词

inactivity