How to say "constructive" in Japanese

• 建設的けんせつてきCommon
  na-adjectiveCovers 'constructive' in the sense of contributing usefully, especially to discussion, criticism, or proposals. This is the direct equivalent, as in constructive criticism or a constructive suggestion.
  彼女かのじょが建設的けんせつてきな構想こうそうを持もつ。↗

  She has constructive ideas.
• 前向きまえむきCommon
  na-adjective, no-adjectiveMatched to 'constructive' through its sense of positive, but it really means forward-looking or having a positive attitude. Use it for an upbeat mindset, not for constructive criticism.

Use 建設的 for 'constructive' in its literal sense of offering useful suggestions or criticism; use 「前向き」 when you mean an upbeat, forward-looking attitude rather than concrete helpfulness.

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

• 建設的けんせつてきconstructive
• 前向きまえむきforward-looking
• 生産的せいさんてきconstructive