うんちくでわありませんでした
蘊蓄ではありませんでした
unchikudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of うんちく

1. Was not accumulated.; Did not possess.; Was not stored.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana