How to say "pending" in Japanese

• 未定みていJLPT N1approx.Common
  no-adjective, na-adjectiveCovers 'pending' in the sense of not yet fixed or decided — a date, plan, or answer that is still up in the air; it matches the 'TBD' sense of the English word.
  計画けいかくはまだ未定みていである。↗

  The plans are still up in the air.
• 未決みけつCommon
  no-adjectiveCovers 'pending' as a matter awaiting decision or settlement; it has a formal, often legal flavor, so for an undecided date or plan 未定 is the word you want.
  訴訟そしょうは未決みけつである。↗

  The lawsuit remains undecided.
• 未解決みかいけつCommon
  no-adjective, na-adjectiveCovers 'pending' for problems, cases, or issues that remain unsolved or unresolved; the emphasis is on something not yet settled, rather than merely not yet decided.
  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.

Use 未定 for something not yet fixed or decided (a date, plan, or answer), 未決 for a matter awaiting decision in formal or legal contexts, and 未解決 for a problem, case, or issue that remains unresolved.

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

• 未定みていnot yet fixed
• 未決みけつpending
• 未解決みかいけつunsolved
• ペンディングpending
• 係属中けいぞくちゅうpending (e.g. legal case)
• 不決定ふけっていpending
• 未整理みせいりpending
• 未確定みかくていunconfirmed
• 検討中けんとうちゅうunder investigation
• 宙ぶらりんちゅうぶらりんpending