無む制せい限げん貿ぼう易えき

• 自じ由ゆう貿ぼう易えき

  自由貿易 (free trade) is a broader concept of trade without government interference, while 無制限貿易 specifically emphasizes the absence of quantitative limits or restrictions.

• 保ほ護ご貿ぼう易えき

  保護貿易 (protectionism) is the opposite, involving tariffs and quotas to restrict imports.

Compound of 無制限 (unlimited, unrestricted) and 貿易 (trade). The exact historical derivation is uncertain, but the term follows standard Sino-Japanese word formation patterns.