How to say "limitation" in Japanese

• 制限せいげんJLPT N3approx.Common
  noun, suru verb, transitive verbA common word for a limit or restriction imposed on something — on speed, time, numbers, or access; it presents the limitation as a cap or rule restricting activity or amount.
  制限せいげんスピードを超こえるなよ。↗

  Don't go beyond the speed limit.
• 制約せいやくJLPT N1approx.Common
  noun, suru verb, transitive verbCovers 'limitation' as a constraint or limiting condition — something in a situation or system that restricts what can be done, a binding condition rather than a cap on an amount or activity.
  合衆国がっしゅうこくには小火器しょうかきの販売はんばいに関かんする法律上ほうりつじょうの制約せいやくはほとんどない。↗

  There are few legal constraints on the sale of firearms in the U.S.

Use 制限 for a limit or restriction imposed on quantity, time, or activity, and 制約 for a constraint or limiting condition that binds what is possible in a situation or system.

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

• 制限せいげんrestriction
• 制約せいやくlimitation
• リミテーションlimitation
• 公訴時効こうそじこうlimitation
• 制限事項せいげんじこうrestriction