personality clash

A conflict between two or more people due to a fundamental incompatibility in their personalities.

Japanese Meaning

性格の不一致による対立 / 性格に起因する衝突

Their constant personality clash made team meetings tense and unproductive.

彼らの絶え間ない性格の不一致のために、チームの会議は緊張し非生産的になった。

Sense（1）

A conflict between two or more people due to a fundamental incompatibility in their personalities.

personality clashes

（ plural ）