最小 さいしょう可知 かち差異 さいではありませんでした
saishōka chisaidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 最小可知差異

1. Was not the minimum detectable difference.; Was not the smallest discernible difference.

Past/Perfective
Negative
Polite
Formal Register