[ kuh-lab-uh-rey-shuh-nist ]
/ kəˌlæb əˈreɪ ʃə nɪst /
a person who collaborates with an enemy; collaborator.
Related formscol·lab·o·ra·tion·ism, nounnon·col·lab·o·ra·tion·ist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for collaborationist
But was my grandfather really more appalled by this than he was by the crimes of the collaborationist art dealers?My Grandfather's War: Recovering the Art the Nazis Stole|Anne Sinclair|October 5, 2014|DAILY BEAST
One was the relative autonomy that France had earned through its collaborationist government in Vichy.