Related formsan·ti-i·so·la·tion·ist, noun, adjectiveun·i·so·la·tion·ist, adjective
Examples from the Web for isolationist
Paul, meanwhile, has taken to cyberbullying Rubio, tweeting on Friday that he is “acting like an isolationist.”
“With all due respect” because “isolationist,” Cheney knows, is a deeply politically damaging insult.
Establishment figures look a bit askance at the Kentucky senator because of his isolationist roots.
It really does encourage an isolationist view that negates the shared experience.
Instead, he carried on with his blinkered views and remained an isolationist.“The Patriarch”: Joseph Kennedy Sr.’s Outsized Life|Jacob Heilbrunn|November 21, 2012|DAILY BEAST
But gradually they came to accept Harry's isolationist ways as the norm—at least, for him.This Crowded Earth|Robert Bloch