How to say "deeply" in Japanese

• つくづくCommon
  adverb (with と)Covers the sense of feeling something keenly or deeply in one's mind, often with reflection or resignation. Typical when you realize keenly how difficult, precious, or fleeting something is.
  彼かれは、自分じぶんの不幸ふこうをつくづく考かんがえた。↗

  He brooded over his misfortunes.
• しみじみJLPT N2approx.Common
  adverb (with と)Covers feeling something deeply and heartily, with a quiet, emotional resonance. Typical when a story, kindness, or the passage of time sinks in and moves you fully.
  その悲かなしい話はなしは彼女かのじょにしみじみと感かんじられた。↗

  The sad story came home to her.
• ほっとJLPT N1approx.Common
  adverbOnly matches 'deeply' in the fixed sense of a deep sigh, typically one of relief after tension or worry. For any other sense of 'deeply' this is not the word you want.

Use 「つくづく」 for keenly feeling something in the mind, 「しみじみ」 for being deeply moved or heartfelt impressions, and 「ほっと」 only for a deep sigh of relief.

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

• つくづくdeeply
• しみじみkeenly
• ぐさりdeeply (stab, thrust, etc.)
• ほうっとdeeply
• グサッとdeeply (stab, thrust, etc.)
• 深くふかくdeeply
• いたくextremely
• つらつらcarefully
• ジーンと(being moved) deeply
• ずぶずぶ(sink) deeply (into mud, snow, etc.)
• ほっとdeeply (sigh)
• ざっくり(cutting) deeply
• ぐっとdeeply (e.g. moved)