1the quality of being honest and having strong moral principles:a gentleman of complete integrity
2the state of being whole and undivided:upholding territorial integrity and national sovereignty
the condition of being unified or sound in construction:the structural integrity of the novel
internal consistency or lack of corruption in electronic data: [as modifier]:integrity checking
Origin:
late Middle English(in sense 2): from French intégrité or Latin integritas, from integer 'intact' (see integer). Compare with entirety, integral, and integrate
integrity in other Oxford dictionaries
Definition of integrity in the US English dictionary