制限|せいげんseigen[3]nakadaka (mid-high)

1. noun, suru verb, transitive verbrestriction; restraint; limitation; limit
   制限せいげんスピードを超こえるなよ。↗

   Don't go beyond the speed limit.

• Synonym限定げんていNeutralDelimits something to a set range, as in 「期間限定」; the focus is on fixing the scope, while 「制限」 is about imposing limits and forbidding going beyond them.
• Synonym制約せいやくWrittenConstraints imposed by conditions, as in 「時間の制約」; mostly objective conditions rather than deliberate limits, and it leans toward written/formal prose.
• Synonym限るかぎるNeutralA verb meaning to limit or confine to, as in 「会員に限る」; it also means something is the best choice, as in 「夏はビールに限る」.
• Synonym束縛そくばくNeutralBinding or fettering freedom, as in 「時間に束縛される」; carries an oppressive, stifling nuance.
• Related抑制よくせいNeutralPressing something down or holding it in check, as in 「インフレ抑制」 or 「感情を抑制する」; 「制限」 is about setting boundaries.
• Related限度げんどNeutralA noun for the limit or bound itself, the maximum extent, as in 「限度額」; it names the boundary rather than the act of restricting.
• Related削減さくげんNeutralCutting or reducing quantities, as in 「経費削減」; the emphasis is on making something smaller, while 「制限」 is about imposing limits.
• Related拘束こうそくNeutralRestraining a person's body or freedom of movement, as in 「身柄を拘束する」; carries a coercive, compulsory nuance.
• Related抑止よくしNeutralDeterring or checking an action before it happens, as in 「核抑止力」; typically used for preventing some act from occurring.
• Related制止せいしNeutralStopping someone's words or actions on the spot, as in 「暴走を制止する」; the emphasis is on halting, not setting limits.
• Related縮減しゅくげんWrittenA written/formal word for scaling down size or scope, as in 「予算の縮減」; mostly seen in administrative contexts.
• Related抑圧よくあつNeutralPressing down or suppressing, applied to speech as in 「言論の抑圧」 or to emotions and impulses; 「制限」 merely sets boundaries.
• Related牽制けんせいNeutralHolding an opponent in check or curbing their moves, as in 「互いに牽制し合う」; carries a strategic, tactical flavor.
• Related節するせっするWrittenA rare written/formal verb meaning to be moderate or economize; in daily speech say 「節約する」 instead.
• Antonym自由じゆうNeutralFreedom; the direct opposite of 「制限」.
• Antonym無制限むせいげんNeutralUnlimited or unrestricted; it directly negates 「制限」.

Use 「制限」 for limiting quantity, access, use, or action, as in 「入場制限」 and 「速度制限」. For fixing a scope pick 「限定」, for constraints set by conditions 「制約」. To hold down growth or impulses use 「抑制」, to cut amounts 「削減」, and to bind freedom 「束縛」 or 「拘束」. The opposite is 「自由」.

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

1. 区切くぎりを定さだめ、その区切くぎりを超こえることを禁きんずること。
2. ある定義域ていぎいきで定義ていぎされた写像しゃぞうについて、写像しゃぞうの対応たいおう規則きそくは変かえずに、その定義域ていぎいきの狭せまい範囲はんいを取とった範囲はんいを使つかって写像しゃぞうを定義ていぎし直なおすこと。あるいは、そのように作つくられた写像しゃぞう。元もとになった写像しゃぞう f: X → Y に対たいして A ⊆ X を新あたらしい定義域ていぎいきとすると、この写像しゃぞうを「f の A への制限せいげん」と呼よび、f|_A などと記しるす。
3. 〔何なんかに対たいして〕区切くぎりを定さだめ、その区切くぎりを超こえないようにする。あるいは、そのように働はたらきかける。