What part of speech is outmatch?

Outmatch can be categorized as a verb.

Parts of speech

1. outmatch is a verb, present, 1st person singular of outmatch (infinitive).
2. outmatch is a verb (infinitive).

Verb
outmatch - be or do something to a greater degree; "her performance surpasses that of any other student I know"; "She outdoes all other athletes"; "This exceeds all my expectations"; "This car outperforms all others in its class"