grouchy

IPA(Pronunciation)

(originally university slang) Irritable; easily upset; angry; tending to complain.

Japanese Meaning

不機嫌な / 怒りっぽい / すぐに腹を立てる / 文句ばかり言う傾向がある

After pulling an all-nighter, the normally cheerful professor was surprisingly grouchy during the morning lecture.

徹夜した後で、普段は陽気な教授が朝の講義中に驚くほど不機嫌だった。

Sense（1）

(originally university slang) Irritable; easily upset; angry; tending to complain.

His boss gets grouchy when deadlines draw near.

grouchier

（ comparative ）

grouchiest

（ superlative ）