しみじみ・沁み沁み・染み染み・沁沁shimijimi[3]nakadaka (mid-high)

1. adverb (with と)keenly; deeply; fully; heartily; seriously; earnestly
   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.
2. adverb (with と)calmly; quietly; softly
3. adverb (with と)fixedly (gazing, staring); intently

• SynonymつくづくNeutralKeenly, thoroughly, as in 「つくづく嫌になる」; often tinged with reflection or weariness, and can also mean studying something closely. 「しみじみ」 is softer and more wistful.
• Related深くふかくNeutralDeeply and heartily, as in 「深く感謝する」; it stresses sheer depth of feeling, while 「しみじみ」 adds the flavour of quietly savouring an emotion.

Use 「しみじみ」 for deep feelings quietly savoured, as in 「しみじみと語る」. Use 「つくづく」 for keenly realizing something, even tiring of it, and 「深く」 for plain depth of feeling.

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

1. 心こころの底そこから深ふかく感かんじる様子ようす。
2. （方言ほうげん、茨城いばらき）しっかり。