1794, "unfruitful, futile," from Latin otiosus "having leisure or ease,unoccupied, idle, not busy" (source of French oiseux, Spanish ocioso, Italian otioso), from otium "leisure, free time, freedom from business," of unknown origin. Meaning "at leisure, idle" is recorded from 1850. Compare Latin phrase otium cum dignitate "leisure with dignity." Earlier adjective in English was otious- "at ease" (1610s), and Middle English had noun otiosity (late 15c.).
实用例句
1. an otiose round of meetings
一轮无用的会议
来自《权威词典》
2. Objective To study the antitumor activity of otiose and coumarin in novobiocin.
目的研究新生霉素的结构单元诺维糖和香豆素的抗肿瘤活性.
来自互联网
3. But you compare others to catch a few final otiose more, it is toxic still.
可是你比别人多抓几只最终没有用的, 它还是中毒了.
来自互联网
4. Because he does not know the skill of fishing, light has fishing rod is otiose.