at one's peril

Definition of at one's peril

somewhat formal

  1. —used to say that if one does something there could be bad consequences <Restaurants that ignore the smoking ban do so at their peril.>

Word by Word Definitions

  1. :  exposure to the risk of being injured, destroyed, or lost :  danger

    :  something that imperils or endangers :  risk

  1. :  to expose to danger

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