説明 せつめい てき妥当 だとう せいじゃなかったです
setsumeite kida tōseijanakattadesu

Noun
Desu Copula

The polite, past negative form of 説明的妥当性

1. Was not descriptive validity.; Was not explanatory validity.

Past/Perfective
Negative
Polite
Casual Register
Linguistics