unenforceable

unenforceable — adjective

1. describing a rule, contract, or agreement that cannot be applied or made to work

1.形容詞B2
釋義

describing a rule, contract, or agreement that cannot be applied or made to work by authorities or by a court — for example, a law that nobody can be punished for breaking, or a deal that a judge will not force either side to follow.

例句

Minho tried to sue the company, but the court ruled the contract clause was unenforceable.

passive: ruled + unenforceable (legal ruling pattern)

The parking rules in this area are unenforceable because no one checks them.

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同義詞
  • invalid

    stronger than unenforceable — suggests the document had no legal effect from the start

  • void

    similar to 'invalid', often used for contracts that are legally empty

  • inoperative

    formal; describes a rule or law that is not currently in effect

反義詞
  • enforceable

    can be made to work by authorities or courts

文法句型

be unenforceable

rule/contract + is + unenforceable

declare + noun + unenforceable

用法筆記

Common in legal writing and discussions of policy. Most often used as a predicate adjective after the verb 'be' (e.g., 'the rule is unenforceable'), but can also appear attributively (e.g., 'an unenforceable contract'). Distinguish from 'illegal' — an unenforceable agreement is not necessarily against the law; it simply cannot be upheld by a court.

常見錯誤

The contract is illegal, so no one has to follow it.' (when meaning it cannot be enforced).
The contract is unenforceable, so a court will not uphold it.
💡'illegal' means the agreement breaks the law; 'unenforceable' means a court will not force either side to carry it out.
They said my parking ticket is unvalid.
They said my parking ticket is unenforceable.
💡'unvalid' is not a standard English word; use 'unenforceable' or 'invalid'.