Synonyms for Seceder:

• n.

  •splinter group (noun)
  • faction.

• Other synonyms:

  •Other relevant words:
  • recidivist,
  • renegade,
  • apostate,
  • turnabout,
  • secessionist,
  • defector,
  • traitor,
  • turncoat,
  • separatist,
  • quisling,
  • collaborator,
  • proselyte,
  • recreant,
  • mugwump,
  • fifth columnist,
  • schismatic,
  • deserter,
  • convert,
  • strikebreaker.