Someone who rebels and becomes an outlaw.

Roget 742: disobedience, insubordination, contumacy; infraction, infringement; violation, noncompliance; nonobservance etc. 773.    revolt, rebellion, mutiny, outbreak, rising, uprising, insurrection, emeute [Fr.]; riot, tumult etc. (disorder) 59; strike etc. (resistance) 719; barring out; defiance etc. 715.    mutinousness etc. adj.; mutineering^†; sedition, treason; high treason, petty treason, misprision of treason; premunire [Lat.]; lese majeste [Fr.]; violation of law etc. 964; defection, secession.    insurgent, mutineer, rebel, revolter, revolutionary, rioter, traitor, quisling, carbonaro^†, sansculottes [Fr.], red republican, bonnet rouge, communist, Fenian, frondeur; seceder, secessionist, runagate, renegade, brawler, anarchist, demagogue; Spartacus, Masaniello, Wat Tyler, Jack Cade; ringleader.    ... show more

A disloyal person who betrays or deserts his cause or religion or political party or friend etc..

synonyms: apostate, deserter, ratter, recreant, turncoat.

Roget 144: conversion, reduction, transmutation, resolution, assimilation; evolution, sea change; change of state; assumption; naturalization; transportation; development [Biol.], developing.    [photography] [conversion of currency] conversion of currency, exchange of currency; exchange rate; bureau de change.    chemistry, alchemy; progress, growth, lapse, flux.    passage; transit, transition; transmigration, shifting etc. v.; phase; conjugation; convertibility.    crucible, alembic, caldron, retort.    convert, pervert, renegade, apostate.    ... show more

Roget 941: knave, rogue; Scapin^†, rascal; Lazarillo de Tormes; bad man etc. 949; blackguard etc. 949; barrater^†, barrator^†; shyster [U.S.].    traitor, betrayer, archtraitor^†, conspirator, Judas, Catiline; reptile, serpent, snake in the grass, wolf in sheep's clothing, sneak, Jerry Sneak, squealer [Slang], tell-tale, mischief-maker; trimmer, fence-sitter, renegade etc. (tergiversation) 607; truant, recreant; sycophant etc. (servility) 886.    ... show more

Roget 607: change of mind, change of intention, change of purpose; afterthought.    tergiversation, recantation; palinode, palinody^†; renunciation; abjuration^†, abjurement; defection etc. (relinquishment) 624; going over etc. v.; apostasy; retraction, retractation^†; withdrawal; disavowal etc. (negation) 536; revocation, revokement^†; reversal; repentance etc. 950; redintegratio amoris [Lat.].    coquetry; vacillation etc. 605; backsliding; volte-face [Fr.].    turn coat, turn tippet^†; rat, apostate, renegade; convert, pervert; proselyte, deserter; backslider; blackleg, crawfish [U.S.], scab [Slang], mugwump [U.S.], recidivist.    time server, time pleaser^†; timist^†, Vicar of Bray, trimmer, ambidexter^†; weathercock etc. (changeable) 149; Janus.    ... show more

Dutch: overloper, outlaw, afgevallene, afvallige, apostaat, deserteur, dissident, geloofsverzaker, kerkverlater
Polish: apostata, odstępca, odszczepieniec, przechrzta, zaprzaniec

Break with established customs.

synonym: rebel.

Having deserted a cause or principle:
— Renegade supporters of the usurper.

synonym: recreant.