partial breach

Definition from Nolo’s Plain-English Law Dictionary

A failure to satisfy or meet a term of a contract which is so minimal that it does not cause the contract to fail; also referred to as an immaterial breach. A partial breach is remedied by payment or other adjustment -- for example if a landlord rents a furnished apartment and fails to supply a bed, the landlord may lower the rent temporarily until the bed is provided.

Definition provided by Nolo’s Plain-English Law Dictionary.