得意 とくい分野 ぶんやではありませんでした
tokui bun'yadewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 得意分野

1. Was not my forte.; Was not my area of expertise.; Was not something I was good at.

Past/Perfective
Negative
Polite
Formal Register