プログレッシブ和英中辞典(第4版)の解説
あいしょう【相性】
《文》 compatibility
二人は相性がよかった
They got along well with each other./They were congenial friends./《口》 They hit it off well together [with each other].
あの人とはどうも相性が悪い
I just don't get along with him./Somehow he and I just aren't compatible.