Denshi Jisho — Online Japanese dictionary

不堪 ふかん incompetence
Na-adjective, Noun, Obscure term 
不学 ふがく unlearned; uneducated
Na-adjective 
不遇 ふぐう misfortune; bad luck; obscurity
Na-adjective, Noun 
不敬 ふけい disrespect; irreverence; impiety; blasphemy; profanity
Na-adjective, Noun 
不言 ふげん silence
Noun 
不才 ふさい lack of talent; incompetency
Noun 
不参 ふさん absence; nonattendance; nonappearance
Noun, Suru verb 
不識 ふしき the unknown
Noun 
不悉 ふしつ Very Sincerely Yours
Noun, Archaism 
不臣 ふしん disloyalty; unfaithfulness
Noun 
不実 ふじつ perfidiousness; faithlessness; inconstancy; insincerity; falsehood
Na-adjective, Noun, No-adjective 
不日 ふじつ in a few days; at an early date
Adverb 
不仁 ふじん heartlessness; inhumanity
Na-adjective, Noun 
不尽 ふじん Very sincerely yours
Noun 
不随 ふずい paralysis; palsy
Noun 
不整 ふせい irregular
Na-adjective, Noun 
不斉 ふせい irregularity; unevenness; asymmetry; lack of uniformity
Noun, No-adjective 
不宣 ふせん Very sincerely yours
Noun 
不善 ふぜん evil; sin; vice; mischief
Noun 
不測 ふそく unexpected; unforeseen; accidental
Noun, No-adjective 
不遜 ふそん arrogance; insolence; disrespect
Na-adjective, Noun 
不退 ふたい determination
Noun 
不達 ふたつ nondelivery
Noun 
不為 ふため disadvantageous; harmful; unprofitable
Na-adjective, Noun 
不沈 ふちん unsinkable
No-adjective 
不定 ふてい uncertainty; insecurity; inconstancy; indefinite; undecided
Na-adjective, Noun, No-adjective 

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