An instance of differing or not matching.

Failure to correspond or agree.

विरोधाभास

English Usage: There was a mismatch in the data provided by the two departments.

Hindi Usage: दो विभागों द्वारा प्रदान किए गए डेटा में विरोधाभास था।

Not matching or unsuitable in combination.

Different or not in harmony.

भिन्न

English Usage: He wore a mismatched outfit that caught everyone's attention.

Hindi Usage: उसने भिन्न कपड़े पहने थे जो सबका ध्यान खींच रहे थे।