(of a time) at which a particular action or event occurs, especially conveniently or appropriately (时机)恰好的;适宜的 he couldn't have arrived at a less opportune moment. 他当时来得太不是时候了。 ■done or occurring at a favourable or useful time;well-timed 适时的;及时的 the opportune use of humour to lower tension. 适时运用幽默来缓和紧张气氛。
派生 opportunely adverb opportuneness noun 语源
late Middle English: from Old French opportun(e), from Latin opportunus, from ob- 'in the direction of' + portus 'harbour', originally describing the wind driving towards the harbour, hence 'seasonable'