HSK 1.0 (1992)	Big5	Gb	Pin	Eng
C	悶	闷	men4	bored/ depressed/ in low spirits/ muffled

HSK 2.0 (2010)	Big5	Gb	Pin	Eng
6		忧郁	you1 yu4	sullen/ depressed/ melancholy/ dejected
6		沉闷	chen2 men4	oppressive (of weather)/ heavy/ depressed/ not happy

HSK 3.0 (2022)	Big5	Gb	Pin	Eng
7	凹	凹	āo	depressed, sunken, indented, concave, female (connector etc), variant of 窪|洼[wa1], (used in names)
7	沉悶	沉闷	chénmèn	oppressive (of weather), heavy, depressed, not happy, (of sound) dull, muffled
7	沮喪	沮丧	jǔsàng	depressed, disheartened
7	悶	闷	mèn	stuffy, shut indoors, to smother, to cover tightly, bored, depressed, melancholy, sealed, airtight, tightly closed
7	頹廢	颓废	tuífèi	decadent, dispirited, depressed, dejected
7	消沉	消沉	xiāochén	depressed, bad mood, low spirit
7	抑鬱	抑郁	yìyù	depressed, despondent, gloomy, depression
7	憂鬱	忧郁	yōuyù	sullen, depressed, melancholy, dejected

输球令他很郁闷。 Losing the ball game depressed him . 输球 令 他 很 郁闷 。 (ENG ) (ZH ) (2520)

她的内心很压抑。 She feels very depressed (by an accumulation of pent-up feelings) . 她 的 内心 很 压抑 。 (ENG ) (ZH ) (2563)

他看起来有点郁闷。 He looks a bit depressed . 他 看起来 有点 郁闷 。 (ENG ) (ZH ) (2656)