相手 あいて次第 しだいではありませんでした
aite shidaidewārimasendeshita

Noun
Desu Copula
na-Adjective

The polite, past negative form of 相手次第

1. It did not depend on the other party.; It was not up to the other party.

Past/Perfective
Negative
Polite
Formal Register