Denshi Jisho — Online Japanese dictionary

鬱 うつ depression; low spirits
Noun 
鬱金 うこん turmeric (Curcuma domestica)
Noun, Usually written using kana alone 
鬱気 うっき gloomy; melancholy
Noun 
鬱ぐ ふさぐ to feel depressed; to mope
Godan verb with gu ending 
鬱屈 うっくつ gloomy
Noun, Suru verb 
鬱血 うっけつ 1: blood congestion;
2: (Suffix) -stasis
Noun, Suru verb 
鬱積 うっせき accumulation (e.g. of emotions, grievances, etc.); buildup; suppression (e.g. of anger)
Noun, Suru verb 
鬱蒼 うっそう thick; dense; luxuriant
Taru-adjective, Adverb taking the 'to' particle 
鬱滞 うったい congestion; pent-up feelings
Noun, No-adjective, Suru verb, Usually written using kana alone 
鬱憤 うっぷん resentment; grudge; anger
Noun 
鬱々 うつうつ gloomy; melancholy; pessimistic
Taru-adjective, Adverb taking the 'to' particle, Usually written using kana alone 
鬱鬱 うつうつ gloomy; melancholy; pessimistic
Taru-adjective, Adverb taking the 'to' particle, Usually written using kana alone 
鬱然 うつぜん 1: dense (vegetation); thick;
2: prominent; popular;
3: gloomy (mood)
Taru-adjective, Adverb taking the 'to' particle 
鬱勃 うつぼつ irresistible force or movement
Na-adjective, Noun, Taru-adjective 
鬱病 うつびょう melancholia; depression
Noun 
鬱金色 うこんいろ yellow; saffron (color, colour)
Noun 
鬱金香 うこんこう tulip
Noun 
鬱ぎ込む ふさぎこむ to mope; to brood; to be in low spirits; to have the blues
Godan verb with mu ending, Intransitive verb 
鬱金香 うっこんこう tulip
Noun 
鬱陶しい うっとうしい 1: (Usually written using kana alone) gloomy (e.g. mood); depressing;
2: heavy (weather); cloudy;
3: irritating; troublesome
Common word, Adjective 
鬱状態 うつじょうたい depression; manic depression
Noun, No-adjective 
鬱憤晴らす うっぷんはらす to vent one's anger
Expression, Godan verb with su ending 
鬱を散じる うつをさんじる to chase one's gloom away; to free one's thoughts from melancholy
Expression, Ichidan verb, Obscure term 
鬱憤を晴らす うっぷんをはらす to vent one's anger
Expression, Godan verb with su ending 
鬱血除去薬 うっけつじょきょやく decongestant
Noun 

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