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Definitions

isolationist

[ahy-suh-ley-shuh-nist, is-uh-] / ˌaɪ səˈleɪ ʃə nɪst, ˌɪs ə- /
ADJECTIVE
conventional
Synonyms
STRONGEST
rigid
WEAK
bigoted bourgeois button-down commonplace conforming conservative demure doctrinal dogmatic drippy hackneyed hidebound humdrum illiberal in rut inflexible insular lame literal moderate moral narrow narrow-minded not extreme not heretical obstinate parochial pedestrian prosaic puritanical routine rube run-of-the-mill sober solemn square stereotyped straight strait-laced strict stuffy uptight
Antonyms
WEAK
abnormal different exotic foreign irregular new original strange uncommon unconventional uncustomary unique unusual
NOUN
nonaligned nation
Synonyms
WEAK
neutralist nation unaligned nation

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Countries have become more isolationist manufacturing-wise, so they need to generate more electricity locally.

From Barron's • Mar. 11, 2026

If you think he’s an isolationist, you’re wrong.

From The Wall Street Journal • Nov. 4, 2025

Famous for its isolationist culture and strict immigration policies, the island nation has experienced a record surge in both tourists and foreign residents in recent years.

From BBC • Jul. 20, 2025

“Not unless we want to become isolationist to a degree that is unthinkable,” Walker added.

From Seattle Times • May 10, 2024

Well, there were a few men who did not feel content with that comfortable isolationist climate.

From The Invisible Government by Smoot, Dan

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.