How to say "fortunate" in Japanese

• 幸あるさちある
  expression, prenominal modifierCovers 'fortunate; happy; lucky' in a literary, somewhat archaic register. It evokes happiness and blessing rather than mere chance, so it suits elevated prose about a happy fate; for everyday luck another word is usually better.
• 運がいいうんがいい
  expression, i-adjective (よい/いい)The plain predicate 'to be lucky; to be fortunate', describing a person who benefits from good luck. Use it when you would say in English 'I'm lucky' or 'he was fortunate', without any emphasis on timing.
  ケイちゃんはとても運うんがいいのよ。お産さんの時ときから、そうだったわ。↗

  Kei's very lucky! He has been since his birth.
• 間がいいまがいい
  expression, i-adjective (よい/いい)Means 'lucky; fortunate' with the special nuance of 'timely; convenient': good luck a matter of the moment or of timing. Use it when something happens at just the right time; it is not the default for general good fortune.
• 運のいいうんのいい
  expression, i-adjective (よい/いい)Attributive form matching 'lucky; fortunate', used before a noun, as in describing a lucky person or lucky circumstances. It is the natural choice when 'fortunate' is a modifier in English rather than a predicate.
• 間のいいまのいい
  expression, i-adjective (よい/いい)Attributive counterpart of 間がいい, meaning 'lucky; fortunate' in the sense of 'timely; convenient'. Use it before a noun when the luck lies in happening at just the right moment, not in fortune generally.

All five are less common ways to render 'fortunate'; choose 「運がいい」 or 「運のいい」 for plain luck, 「間がいい」 or 「間のいい」 for lucky timing, and 「幸ある」 for a literary 'happy, blessed' feel.

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

• 幸あるさちあるfortunate
• 運がいいうんがいいlucky
• 間がいいまがいいlucky
• 運のいいうんのいいlucky
• 間のいいまのいいlucky
• うまいgood (deal, idea, etc.)
• まいゆfortunate
• 冥加みょうがblessed