How to say "least" in Japanese

• 最低さいていJLPT N3approx.Common
  no-adjective, na-adjectiveLowest degree or level: the bottom limit, as in 'at the very least' or the lowest temperature on record. It can also mean 'the worst', a separate sense.
• 最小さいしょうCommon
  no-adjectiveCovers 'least' as smallest in size or degree — a minimum value, extent, or amount — rather than the smallest number; for fewest in number, 最少 is the word.
  第だい二にが周辺しゅうへん環境かんきょうとの親和性しんわせいであり、最小さいしょうの廃棄物はいきぶつ、自然しぜんエネルギーの利用りよう等とう、周辺しゅうへんの生態せいたいと調和ちょうわした住空間じゅうくうかんを形成けいせいすることである。↗

  The second is the affinity with environment. By utilizing natural energy and reducing wastes, we have to make houses which harmonize with ecology.
• 最少さいしょうCommon
  no-adjective'Least' in the sense of fewest: the smallest number or count — how many, not how big or how much. Note that it sounds identical to 最小.
• 最小限さいしょうげんCommon
  no-adjectiveA noun for 'the minimum': the least amount or degree, treated as a lower limit. It fits phrases like 'keep something to a minimum' or 'with minimal effort'.
  被害ひがいは最小限さいしょうげんに食い止くいとめられた。↗

  The damage was held to a minimum.

Choose 最低 for the lowest degree or level, 最小 for the smallest in size or degree, 最少 for the fewest in number, and 最小限 for the minimum amount, as in keeping something to a minimum.

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

• 最低さいていleast
• 最小さいしょうsmallest (in size, degree, etc.)
• 最少さいしょうfewest
• 最小限さいしょうげんminimum
• せめてものminimum
• 端はしodds and ends
• せめてもminimum