How to say "dreamer" in Japanese

• ドリーマー
  nounThe direct loanword, covering 'dreamer' in its ordinary senses; use it for an idealistic person with big dreams, as in talk about aspiring musicians or artists.
• 夢想家むそうか
  nounCovers 'dreamer' as an idealist: a person who lives in dreams and visions rather than practical reality. Fits descriptions of thinkers or artists absorbed in their ideals.
  彼かれは夢想家むそうかにすぎない。↗

  He is nothing more than a dreamer.
• 空想家くうそうか
  nounCovers 'dreamer' with an emphasis on fantasy and daydreaming, and can also mean a visionary. Use it for someone whose head is full of imaginative, unrealized ideas.
  彼かれは空想家くうそうかにすぎない。↗

  He is no more than a dreamer.
• 夢追い人ゆめおいびと
  expression, nounThis is the active 'dreamer', a dream chaser: someone actually pursuing a dream rather than just imagining it. Typical of profiles and stories about people striving toward a goal.
• 脳内お花畑のうないおはなばたけ
  nounDerogatory slang, not a neutral word for 'dreamer': it mocks someone living in a rosy fantasy of their own, blissfully out of touch with reality. Use only when deliberately insulting.

Use 「ドリーマー」 as the direct loanword, 夢想家 or 空想家 for idealists and daydreamers, 「夢追い人」 for someone actively chasing a dream, and 「脳内お花畑」 only as derogatory slang for someone out of touch with reality.

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

• ドリーマーdreamer
• 夢想家むそうかdreamer
• 空想家くうそうかdreamer
• 夢追い人ゆめおいびとdream chaser
• 脳内お花畑のうないおはなばたけhappy-go-lucky person
• ロマンチストromantic