This is the 5769th most frequent Japanese word.
なじま
"なじま" is not a standard Japanese word. It might be a typo or misspelling.
Here, なじまない means 'to not adapt,' showing the necessity to adjust oneself to unfamiliar surroundings.
新しい環境になじまないといけません。
You must adapt to the new environment.
In this case, なじみました implies 'became familiar,' indicating successful integration into a group or context.
彼はそのチームにすぐになじみました。
He quickly became familiar with that team.
Here, なじむ is used to ask about the process of adapting to a new atmosphere, indicating a query regarding adjustment methods.