Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
isolationistic is an adjective meaning "of or relating to isolationism". It carries one recorded sense.
of or relating to isolationism
Definitions, synonyms and semantic relations for isolationistic come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. .