未解決|みかいけつmikaiketsu[2]nakadaka (mid-high)

1. no-adjective, na-adjectiveunsolved; unresolved; unsettled; pending; outstanding
   ２つの問題もんだいが未解決みかいけつのままであった。↗

   Two problems remained unsolved.

• Related未定みていNeutralNot yet decided or fixed, as in 「日程未定」; use 「未解決」 when a problem or case remains unsolved.
• Related不確定ふかくていWrittenWritten/formal prose for things that cannot be pinned down and may change, stressing uncertainty, as in 「不確定要素」.
• RelatedうやむやNeutralVague and left to fizzle out; often carries dissatisfaction at being fobbed off, as in 「うやむやにする」.
• Related宙ぶらりんちゅうぶらりんCasualColloquial. Literally dangling in mid-air; a matter left hanging, neither resolved nor dropped, with a sense of instability.
• Related未確定みかくていWrittenWritten/formal prose for something not yet finalized, common in statistics and law, as in 「未確定の数字」.
• Related未決定みけっていNeutralNo decision has been made yet; 「未解決」 is about problems or cases that remain unsolved.
• Antonym解決済みかいけつずみNeutralThe problem has been dealt with and is finished; the direct opposite of 「未解決」.

Use 「未解決」 for problems or cases not yet solved, as in 「未解決事件」. 「未定」/「未決定」 mean not yet decided; 「うやむや」 a matter left vague or dropped; 「宙ぶらりん」 colloquially something in limbo. 「不確定」/「未確定」 suit formal prose; 「解決済み」 is the opposite.

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

1. 未いまだに解決かいけつされていないこと。また、そのようなさま。