felicitousness 

英汉解释

n. 恰当

同义词

n. felicity

反义词

n.   infelicity

参考例句

1. Bart was pleased by the felicitousness of the phrasing.
'巴特'。''因措辞恰当而高兴。
2. Bart was pleased by the felicitousness of the phrasing.
巴特因措辞恰当而高兴。
3. They don't think it is felicitousness for me to settle this question . thus, arosed a fierce discussion.
人们认为我对如何处理这个问题的看法不恰当，因此，展开了异常热烈的讨论。

英英解释

n.
  1. pleasing and appropriate manner or style (especially manner or style of expression)

网络释义

felicitousness
恰当;
aptitude felicitousness felicity seemliness
恰当;