精神 せいしん発達 はったつ遅滞 ちたいでしょう
seishinhattatsuchitaideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 精神発達遅滞

1. Probably a mental developmental delay.; Possibly intellectually disabled.

Polite
Presumptive
Conjecture