Sabbath-breaker
absconder
apostasy
apostate
atheist
backslider
betrayal
blasphemer
bolt
bolter
breakaway
collaborationist
collaborator
convert
damas
defection
defector
dereliction
desertion
escapee
fifth columnist
fugitive
mugwump
outlaw
proselyte
quisling
rat
rate
ratter
ratting
recidivist
recreant
renegade
renegado
renegate
reversionist
runagate
runaway
sacrilegist
schism
schismatic
seceder
secession
secessionist
separatist
quitter
assassin
betrayer
blackguard
coward
exhibitionist
impostor
informant
marauder
miscreants
mutineer
robber
scoundrel
sympathizer
traitor
turncoat