詳細 しょうさい説明 せつめいじゃありませんでした
shōsaisetsumeijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 詳細説明

1. It wasn't a detailed explanation.; It wasn't explained in detail.

Past/Perfective
Negative
Polite
Terminal Form
Computing