odd vs unmatched

odd and unmatched both are adjectives.

Word	Noun	Adjective	Verb	Adverb
odd	No	Yes	No	No
unmatched	No	Yes	No	No

As adjectives, odd and unmatched are synonyms defined as:

Other synonyms of odd include unmated, unpaired.

odd (adjective)	unmatched (adjective)
not divisible by two	eminent beyond or above comparison
an indefinite quantity more than that specified	of the remaining member of a pair
of the remaining member of a pair
beyond or deviating from the usual or expected
not used up
not easily explained