How to say "repeatedly" in Japanese

• グダグダCommon
  adverb (with と)Covers 'repeatedly' only via the sense of dragging on tediously at length, as in rambling or complaining endlessly. It is really a mimetic word for sloppy, drawn-out proceedings rather than simple repetition, so it is seldom the word you want for plain 'repeatedly'.
• 再三さいさんJLPT N2approx.Common
  adverb, no-adjectiveUsed for doing something again and again on separate occasions, often formal requests, warnings, or reminders. It is a concise, neutral way to say 'repeatedly' when counting repeated occurrences, especially in writing or polite speech.
  彼かれは私に、再三さいさん電話でんわをかけてきた。↗

  He telephoned me again and again.
• くどくどCommon
  adverb (with と), suru verbUsed when someone explains, complains, or argues tediously and persistently, going over the same ground again and again. Its 'repeatedly' sense is tied to this wearisome, nagging manner, so avoid it for neutral repetition.
  くどくど言いわないようにしよう。↗

  Let's not go into details.
• しきりにJLPT N3approx.Common
  adverbUsed for an action occurring frequently or incessantly over a period, such as repeatedly asking, nodding, or looking at something. It stresses constant recurrence within a stretch of time rather than occurrences counted across occasions.
• たびたびJLPT N3approx.Common
  adverbThe everyday word for 'often; again and again', used when something happens or someone does something on many occasions. It is neutral and versatile, and is usually the safest choice for ordinary 'repeatedly'.
  私はたびたび彼かれから手紙てがみをもらう。↗

  I often get a letter from him.

Choose 再三 or 「たびたび」 for neutral 'again and again'; 「しきりに」 for frequent, incessant action; 「グダグダ」 and 「くどくど」 cover repeatedly only in the sense of tediously, persistently going on.

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

• ぐだぐだtediously
• 再三さいさんagain and again
• くどくどtediously (explain, complain, etc.)
• しきりにfrequently
• たびたびoften
• しばしばoften
• 重々じゅうじゅうrepeatedly
• 重ね重ねかさねがさねrepeatedly
• 返す返すかえすがえすrepeatedly
• 何遍もなんべんもrepeatedly
• 再三再四さいさんさいしrepeatedly
• スコスコrepeatedly
• 幾重にもいくえにもrepeatedly
• ぼかすかrepeatedly (hitting)
• 一再いっさいonce or twice
• 何度もなんどもmany times over
• 重ねてかさねてonce more
• 二度三度にどさんどagain and again
• 一再ならずいっさいならずover and over
• しきりとfrequently
• 諄々じゅんじゅんearnestly
• しいしいwhile doing over and over
• やいのやいの(pressing) hard
• 盛んにさかんにactively
• しばしば(blinking) repeatedly
• 繰り返しくりかえしrepeatedly
• ぽかぽかrepeatedly (hitting someone)
• くれぐれもrepeatedly
• 三度みたびmany times
• ちょんちょん(touching) lightly and repeatedly