平凡 へいぼん陳腐 ちんぷではありませんでした
heibon chimpudewārimasendeshita

Noun
Desu Copula
na-Adjective

The polite, past negative form of 平凡陳腐

1. Was not commonplace.; Was not ordinary.; Was not banal.; Was not trite.

Past/Perfective
Negative
Polite
Formal Register