Nouns

(n)renegadesomeone who rebels and becomes an outlaw
(n)deserter, apostate, renegade, turncoat, recreant, rattera disloyal person who betrays or deserts their cause or religion or political party or friend etc.

Verbs

(v)rebel, renegadebreak with established customs

Adjectives

(s)recreant, renegadehaving deserted a cause or principle“some provinces had proved recreant”, “renegade supporters of the usurper”