不満|ふまんfuman[0]heiban (flat)

1. noun, na-adjectivedissatisfaction; discontent; displeasure; complaint; unhappiness
   何なんがそんなに不満ふまんですか。↗

   What made you so dissatisfied?

• Synonym不満足ふまんぞくWrittenWritten-flavoured word for not being satisfied. 「不満」 is more common and can also mean the complaint or grumbling itself.
• Synonym不服ふふくNeutralNot accepting a result or decision you feel is unfair, as in 「不服申し立て」; carries a note of protest.
• Related難色なんしょくWrittenWritten word, mostly in 「難色を示す」, for showing reluctance or disapproval on one's face; common in news reports.
• Related異存いぞんWrittenWritten word for an objection, i.e. a differing opinion; typically in the negative 「異存はない」. Focuses on difference of opinion, not the feeling.
• Related不承ふしょうWrittenWritten word for not agreeing, or agreeing only reluctantly; now mostly seen in 「不承不承」 and rare on its own.
• Related不承知ふしょうちWrittenWritten word for refusing consent or approval; rare even in formal prose. 「不満」 is the inner feeling of discontent.
• Antonym満足まんぞくNeutralAntonym: being satisfied or content — the direct opposite of 「不満」.
• Antonym納得なっとくNeutralAntonym: accepting and being convinced something is right; the opposite of the grudging discontent of 「不満」.

Use 「不満」 for inner discontent or grumbling. For refusing to accept a decision say 「不服」; for visible disapproval or reluctance, 「難色を示す」; for objections, 「異存」 (often 「異存はない」). 「不承」「不承知」「不満足」 are written and rare; antonyms are 「満足」 and 「納得」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 満足まんぞくしていないこと及およびその感情かんじょうの表明ひょうめい、不平ふへい。
2. 満足まんぞくしていない様子ようす。