How to say "successfully" in Japanese

• まんまと
  adverbCovers 'successfully' in the sense of pulling something off slickly, often slyly and to the speaker's mild grudging admiration. Fits contexts where someone is artfully tricked or outmaneuvered rather than plain achievement.
  彼かれはまんまとわなにかかった。↗

  He was fairly caught in the trap.
• うまうま
  adverb (with と)A kana-only colloquialism meaning 'successfully; nicely', typically casual spoken or written Japanese. It is seldom the word you want for neutral 'successfully'; use it only in informal, playful contexts.
• 首尾よくしゅびよく
  adverbCorresponds to 'successfully; with success', with a somewhat formal flavor implying the whole enterprise went as planned, from start to finish. Typical of news reports or written accounts of missions, negotiations, and schemes completed as intended.
  今いままでそのなぞを首尾しゅびよく解といた人ひとはいなかった。↗

  No one has succeeded in solving the mystery.
• うまいこと
  adverbMeans 'successfully; nicely; skillfully' in the sense of things working out well, often through clever handling. Common in conversational speech, as in getting something done smoothly or talking one's way through a situation.
• 無事にぶじに
  adverbCovers 'successfully' in the sense of something completing safely and without mishap. The natural choice when the main point is that no trouble occurred, as with arrivals, deliveries, operations, or events ending without incident.
  彼女かのじょは無事ぶじに戻もどってきた。↗

  She returned safe and sound.

Use 「無事に」 for safe, uneventful completion, 「首尾よく」 for formally successful outcomes, and 「うまいこと」, 「まんまと」, or 「うまうま」 for things going off nicely, with increasing colloquial or sly flavor.

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

• まんまとsuccessfully
• うまうまsuccessfully
• 首尾よくしゅびよくsuccessfully
• うまいことsuccessfully
• 無事にぶじにsafely
• 無事ぶじsafely
• うまくsuccessfully