Synonyms for Up in arms:

• adj.

  •angry (adjective)
  • indignant,
  • irate.
  •fighting (adjective)
  • most disputative,
  • most fencing,
  • most brawling,
  • dis putative,
  • most warmongering,
  • more disputative,
  • up arms,
  • more hawkish,
  • more jousting,
  • more contending,
  • most hawkish,
  • more tilting,
  • most wrestling,
  • most sparring,
  • more wrestling,
  • most contending,
  • most tilting,
  • more brawling,
  • un beatable,
  • more jingoistic,
  • dis-putative,
  • most jousting,
  • most battling,
  • re-solute,
  • ready fight,
  • more boxing,
  • more sparring,
  • more warmongering,
  • more fencing,
  • re solute,
  • most jingoistic,
  • more battling,
  • more skirmishing,
  • un-beatable,
  • most skirmishing,
  • most boxing.
  •furious (adjective)
  • in-saner,
  • more maniac,
  • most corybantic,
  • most steamed,
  • un reasonable,
  • more hacked,
  • more corybantic,
  • bent out shape,
  • most maniac,
  • in-sane,
  • most fuming,
  • in sane,
  • more fuming,
  • most hacked,
  • on warpath,
  • more smoking,
  • un-reasonable,
  • most smoking,
  • more steamed,
  • in saner,
  • more maddened,
  • fit be tied,
  • in sanest,
  • most maddened.
  •incensed (adjective)
  • ex asperated,
  • at end of one rope,
  • at end ones rope,
  • ex-asperated,
  • at end one rope,
  • hot bothered,
  • most bugged,
  • more exasperated,
  • most riled,
  • more rousted,
  • most rousted,
  • in-censed,
  • up-tight,
  • at end of ones rope,
  • up tight,
  • at end one's rope,
  • most exasperated,
  • more riled,
  • at end rope,
  • most buffaloed,
  • more bugged,
  • more buffaloed,
  • in censed.
  •indignant (adjective)
  • more po'd,
  • most piqued,
  • up-set,
  • po'd,
  • more pod,
  • in huff,
  • more piqued,
  • dis pleased,
  • most pod,
  • most po'd,
  • dis-pleased.
  •irate (adjective)
  • wrother,
  • blown gasket,
  • wrothest.
  •ireful (adjective)
  • rager,
  • in towering rage,
  • in a towering rage,
  • ragest.
  •militant (adjective)
  • more gladiatorial,
  • most gladiatorial,
  • more combating,
  • most assertory,
  • self assertive,
  • selfassertive,
  • more assertory,
  • most combating.

• Other synonyms:

  •enraged
  • angry.
  •Other relevant words:
  • at loggerheads,
  • combatant,
  • at strife,
  • dissentient,
  • uncooperative,
  • complaining,
  • irascible,
  • disputatious,
  • rebelling,
  • resentful,
  • alarmed,
  • warring,
  • loaded,
  • Familiarized,
  • equipped,
  • protesting,
  • Contra,
  • groomed,
  • obstructive,
  • cheesed off,
  • Cocked,
  • set,
  • at feud,
  • repellent,
  • ready,
  • athwart,
  • armed,
  • vexed,
  • wrathful,
  • briefed,
  • Fuming,
  • planned,
  • resistive,
  • boiling,
  • in the saddle,
  • disturbed,
  • vigilant,
  • noncooperative,
  • raging,
  • at daggers,
  • reluctant,
  • against the tide,
  • prepared,
  • splenetic,
  • in hostile array,
  • refractory,
  • Piqued,
  • prepped,
  • Disputing,
  • on the mark,
  • at square,
  • all ready,
  • Resisting,
  • at issue,
  • Combating,
  • retardant,
  • in battle array,
  • insulted,
  • Withstanding,
  • irritable,
  • at variance,
  • unyielding,
  • angered,
  • up the wall,
  • mature,
  • against the wind,
  • Mobilized,
  • steaming,
  • contrariwise,
  • Retardative,
  • primed,
  • against the grain,
  • exasperated,
  • in readiness,
  • beside oneself,
  • armed and ready,
  • impassioned,
  • in opposition,
  • outraged,
  • psyched up,
  • informed,
  • prearranged,
  • annoyed,
  • embattled,
  • maddened,
  • offended,
  • ready for anything,
  • aroused,
  • in high dudgeon,
  • in a tizzy,
  • well-prepared,
  • livid,
  • irritated,
  • excited,
  • eyeball-to-eyeball,
  • all set,
  • dissenting,
  • infuriated,
  • at daggers drawn,
  • Objecting,
  • fractious,
  • ripe,
  • counter,
  • Coached,
  • revolting,
  • mad,
  • at war with,
  • cross,
  • booted and spurred,
  • unsubmissive,
  • riotous,
  • Renitent.