説明 せつめい てき妥当 だとう せいでしょう
setsumeite kida tōseideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 説明的妥当性

1. Probably explanatory validity.; Likely explanatory validity.

Polite
Presumptive
Conjecture
Linguistics