How to say "unrestricted" in Japanese

• 無制限むせいげんCommon
  no-adjective, na-adjectiveCovers the core sense of 'unrestricted': nothing limits or restricts the thing in question, whether its amount, extent, or duration. This is the straightforward word for the plain 'no limits' meaning.
  もし建物たてものの取り壊とりこわしが無制限むせいげんに行おこなわれるなら、美うつくしい町まちが単たんなるコンクリート・ジャングルになる危険きけんがあるのである。↗

  If the demolition of buildings is uncontrolled, a fine city is in danger of becoming nothing more than a concrete jungle.
• 自由自在じゆうじざいCommon
  na-adjectiveMatches 'unrestricted' chiefly in the sense of acting or moving freely, doing as one wishes with complete mastery. As a four-character idiom, it paints freedom of action, not an absence of formal restrictions.
  私の秘書ひしょは英語えいごが自由自在じゆうじざいだ。↗

  My secretary has a good command of the English language.
• フリーダムCommon
  na-adjective, no-adjectiveA loanword conveying 'free, open, unrestrained' as a quality or feel. For the plain 'no limits' sense of 'unrestricted' it is not the usual choice; 無制限 states an absence of restriction directly.

Use 無制限 for the plain sense of having no limits or restrictions, 自由自在 for acting or moving freely with complete mastery, and 「フリーダム」 for a free, unrestrained quality expressed as a loanword.

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

• 無制限むせいげんunlimited
• 自由自在じゆうじざいfree
• 制限なしせいげんなしunlimited
• フリーダムfree