Definition of contra proferentem in English:

contra proferentem


  • (of the interpretation of an ambiguous contract) against the party which proposed or drafted the contract or clause.

    • ‘As an initial matter, the court noted that the district court's reasoning was ‘plausible,’ but it found the wind deductible to be ambiguous and applied contra proferentem under Texas law.’
    • ‘Faced with two reasonable contract interpretations, the Court then looked to the rule of contra proferentem for guidance on who should bear the risk of these ambiguities.’
    • ‘Therefore, apart from the patent ambiguity exception, a contractor must satisfy the above conditions before the general rule of contra proferentem will apply.’
    • ‘The Court ruled, for the first time in this state, that the rule of contra proferentem is to be used only as a last resort, if the jury cannot resolve the conflict by the use of extrinsic evidence.’
    • ‘But when plan language is ambiguous, this well-established doctrine of contra proferentem does apply, and for good reason.’


Latin, ‘against (the person) mentioning’.


contra proferentem

/ˌkɒntrə prɒfəˈrɛntɛm/