fortuitous
/fɔːˈtjuːɪtəs/adjective
1- happening by accident or chance rather than design偶然的; 偶然发生的：
the similarity between the paintings may not be simply fortuitous.
两幅画的相似可能并非纯属偶然。
1.1
- informal happening by a lucky chance; fortunate〈非正式〉碰巧的; 幸运的：
from a cash standpoint, the company's timing is fortuitous.
从现金角度看, 该公司的时间选择是幸运的。
USAGE
The traditional, etymological meaning of fortuitous is 'happening by chance'： a fortuitous meeting is a chance meeting, which might turn out to be either a good thing or a bad thing. Today, however, fortuitous tends to be often used to refer only to fortunate outcomes and the word has become more or less a synonym for 'lucky' or 'fortunate' （the ball went into the goal by a fortuitous ricochet）. Although this usage is now widespread, it is still regarded by some people as incorrect.
派生词
fortuitously
adverbfortuitousness
noun词源
mid 17th cent.: from Latin fortuitus, from forte 'by chance', from fors 'chance, luck'.