otiose
/ˈəʊʃɪəʊs/adjective
1- serving no practical purpose or result没有用处的, 不必要的; 无效果的：
the linking commentary is often otiose.
串场的解说词往往是不必要的。
1.1
- archaic indolent; idle〈古〉倦怠的; 闲着的。
派生词
otiosely
adverb词源
late 18th cent.: from Latin otiosus, from otium 'leisure'.