1.
a square peg in a round hole
不适任者,不得其所的人,不适合的人选
2.
Inadequate for or unsuited to a particular purpose or application.
不足的，不适合的对某一计划或应用不适合或不适当的
3.
To cast in an unsuitable role.
使担任不适合的角色
4.
not suitable for wear or able to be worn.
不适合或不能穿戴的。
5.
BR>We find the quality suitable (unsuitable) for our market.
产品质量适合（不适合）我们的市场。
6.
He was unsuitably hatted.
他戴的帽子是不合适的。
7.
arrive at the most inopportune hours
在最不合适的时候抵达
8.
His plays stage(do not stage) well.
他的剧本很（不）适合演出。
9.
Noodles are not to my liking.
面条不适合我的口味。
10.
An uninhabitable island.
一个不适合居住的岛
11.
houses unfit for people to live in
不适合居住的房屋.
12.
That color doesn't suit your complexion.
那颜色不适合你的肤色。
13.
not a proper moment for a joke.
不是开玩笑的合适时机
14.
very unpresidential behavior.
非常不适合总统的行为。
15.
It becomes ill you to do so.
你这样做是挺不合适的。
16.
That excuse will not serve you.
你的那个借口不太合适。
17.
In an improper or inappropriate manner.
不适当地以一种不适当的或不合时宜的方式
18.
It ill befits him to do.....
他不宜 [不适合] …。