対立 たいりつ形質 けいしつじゃなかったです
tairitsukeishitsujanakattadesu

Noun
Desu Copula
no-Adjective

The polite, past negative form of 対立形質

1. Wasn't contrasting traits.; Wasn't opposing qualities.

Past/Perfective
Negative
Polite
Casual Register