adj. 1. Matched unsuitably; grouped into pairs or sets with incompatible characteristics. [ Narrower terms: ill-sorted, incompatible, mismated, unsuited; odd, unmatched, unmated, unpaired ] Also See: incompatible. Antonym: matched. [ WordNet 1.5 ]
2. Of very unequal ability; -- of contestants in a contest. The less able contestant is said to be overmatched or outclassed. Syn. -- uneven, not fairly matched. [ WordNet 1.5 ]