つまびらかじゃありませんでした
詳らかじゃありませんでした
tsumabirakajārimasendeshita

Desu Copula
na-Adjective

The polite, past negative form of つまびらか

1. Was not clear.; Was not obvious.; Was not detailed.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana