opportune

英 ['ɒpətjuːn; ,ɒpə'tjuːn] 美[ˌɔpə'tun]

• adj. 适当的；恰好的；合时宜的

1. suitable or at a time that is suitable or advantageous especially for a particular purpose;

"an opportune place to make camp"

"an opportune arrival"

2. at a convenient or suitable time;

"an opportune time to receive guests"