isolationist isolationism • isolationistic · · · Info · Definitions · Synonyms · Characters · · isolationist · · Text Latin · · Script 12 · · Length 5 · · Syllables Definitions · · · (noun) an advocate of isolationism in international affairs. · · Noun Definition 1 (adj) of or relating to isolationism. Synonyms: isolationistic. · · Adjective Definition 1 Synonyms · · · isolationistic · · Synonym 1 Characters · · a latin small letter a U+0061 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 t latin small letter t U+0074