逆行 ぎゃっこう せい健忘 けんぼう しょうでしょう
gyakkōseikembōshōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 逆行性健忘症

1. Probably retrograde amnesia.

Polite
Presumptive
Conjecture