If something is ill-suited to a purpose, it does not fit that job well — the tool, the person, the room, or the plan is the wrong kind of thing. Flip-flops are ill-suited to a mountain trail; a tiny room is ill-suited to a drum lesson.

If something某個東西 is ill-suited to a purpose不適合某個目的，it它 does not fit that job well沒辦法把那件事做好 — the tool, the person, the room, or the plan工具、人、房間或計畫 is the wrong kind of thing就是類型不對。Flip-flops夾腳拖 are ill-suited to a mountain trail不適合走山路；a tiny room小房間 is ill-suited to a drum lesson不適合上鼓課。

The usual pattern is “ill-suited to” (or “for”) something. It is a little formal; day to day, people say “not right for” or “not a good fit.” Though actually, it is about match, not about clothes, even though “suit” makes you think of a jacket.

The usual pattern常見的用法 is是 "ill-suited to" (or "for") something「ill-suited to」（或「for」）加某個東西。It它 is a little formal有點正式；day to day平常 people say大家會說 "not right for" or "not a good fit"「not right for」或「not a good fit」。Though actually不過事實上，it它 is about match說的是合不合適，not about clothes不是衣服的事，even though "suit"雖然「suit」這個字 makes you think of a jacket會讓人聯想到外套。

You can use it for people and for things. It does not mean the person is a bad person — only that this role, place, or task sits badly on them.

You can use it你可以用它 for people and for things來說人也來說物。It它 does not mean the person is a bad person不代表這個人是壞人 — only that只是說 this role, place, or task這個角色、地方或任務 sits badly on them跟他不合。