This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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• Wordscraper
• Wordosaur

n. Alternative spelling of sympathizer.

n. commiserates with someone who has had misfortune

n. someone who shares your feelings or opinions and hopes that you will be successful

"But to describe him as an IRA sympathiser is wilfully ignorant (to be charitable)."

compassionator    condoler    sympathist   

diplomat    deserter    agitator    emissary    democrat    informant    archæologist    consulate    guerrilla    patriot