glum
意味
- むっつりした,不機嫌な
例文
Don't be so glum about it. Life has its ups and downs.
人生沈む瀬あれば浮かぶ瀬あるわけだから、あまりくよくよしないように。
語源
英語の原文（Wiktionary）
Probably from Middle Low German glum (“glum”), related to German dialectal glumm (“gloomy, troubled, turbid”). More at gloomy.