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Definition of isolationism

isolationism

/ˌaɪ.səˈleɪ.ʃə.nɪ.zəm/
i · so · la · tion · ism
Adjective:isolationist
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isolationism Lexical Profile

isolationism Game Scores & Validity

• noun

1

A national policy of remaining apart from the political affairs, alliances, or economic interests of other countries.

Example

"During the interwar period, many politicians favored a strict policy of isolationism to avoid being drawn into foreign conflicts."

Synonyms
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Antonyms
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• Rhymes for isolationism

• Nearby Words

isolated
isolating
isolation
isolationism
isolationist
isolator
isolex

Word Origin & Etymology

First recorded in the early 20th century, the word combines 'isolation' (ultimately from Latin 'insulatus', meaning 'made into an island') with the suffix '-ism', gaining widespread political usage during debates over American involvement in World War I and the League of Nations.

Cite this Entry

Wordmom. (2026). Definition of Isolationism. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/isolationism
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