How to say "noticeable" in Japanese

• 格段かくだんCommon
  no-adjective, na-adjectiveCovers 'noticeable' in the sense of a dramatic, marked difference, most naturally with improvement or change. Use it when something has become noticeably better or the gap between two things is striking.
  それは以前いぜんに比くらべて格段かくだんに進歩しんぽした。↗

  It has greatly improved compared with what it was.
• 見るべきみるべき
  pre-noun adjectivalMeans 'worth seeing' or 'noteworthy', so it fits 'noticeable' only when something deserves to be seen or looked at. This is really a 'must-see' word, not the everyday way to say 'noticeable'.
• それとわかる
  expression, prenominal modifierCovers 'noticeable' as 'recognizable' or 'detectable' — something you can tell apart or identify at a glance. Literally 'you can tell it is that', it describes a difference or feature that lets you recognize it for what it is.
• さしたる
  pre-noun adjectivalMeans 'particular' or 'special', typically in negative expressions meaning nothing in particular. For 'noticeable' in the sense of 'perceptible' it is a marginal match, and it is seldom the word you want for that sense.

Use 格段 for a striking, dramatic difference such as a marked improvement; 「それとわかる」 for something you can visibly identify; 「見るべき」 for things worth seeing; 「さしたる」 usually means nothing in particular rather than noticeable.

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

• 格段かくだんdramatic (improvement)
• 見るべきみるべきworth seeing
• それとわかるdetectable
• さしたる(any) particular