morose

morose（məróʊs｜‐rˈəʊs）1530s "gloomy, of a sour temper, sullen and austere," from Latin morosus "morose, peevish, hypercritical, fastidious," from mos (genitive moris) "habit, custom" (see moral (adj.)). In English, manners by itself means "(good) manners," but here the implication in Latin is "(bad) manners."

「もろうすのろは 不機嫌だ。」

形容詞

(mo・ros・er; ‐est) 気難しい，不機嫌な.

morosely 副詞

moroseness 名詞