If you describe something as inopportune or if you say that it happens at an inopportune time, you mean that it happens at an unfortunate or unsuitable time, and causes trouble or embarrassment because of this.
例句
The dismissals came at an inopportune time.解雇通知来得不合时宜。
英汉词典释义
adj.
不凑巧的;不合时宜的
He called at an inopportune moment,when we were about to go out.他来得真不是时候,我们正准备外出。
英英词典释义
Adjective
1. not opportune;
"arrived at a most inopportune hour""an inopportune visit"