A legal principle preventing a party from denying or asserting something contrary to what has been previously implied or admitted by that party’s actions, words, or silence. In the context of insurance, it arises when an insurer’s conduct leads a policyholder to reasonably believe coverage exists, even if the policy terms state otherwise. For instance, if an insurance adjuster initially assures a claimant their loss is covered, then later denies the claim based on a policy exclusion, the insurer might be barred from enforcing that exclusion due to their prior representation.
The application of this principle protects insured parties from detrimental reliance on an insurer’s representations. It promotes fairness and prevents insurers from taking advantage of policyholders who depend on the insurer’s expertise and guidance. Historically, it developed as a way to achieve equitable outcomes when strict application of contract law would lead to unjust results, particularly in situations where one party possessed superior knowledge or bargaining power.