C2 adjective /fəˈlɪsɪtəs/
felicitous
恰当的, 合适的或令人愉快的; 由好运或幸福标志
Meaning
well-chosen, appropriate, or pleasing; marked by good fortune or happiness
Example
She made a felicitous remark that lightened the mood.
她做了一个恰到好处的评论,使气氛轻松了。