Synonyms for frontier | Synonym.com

Synonyms for frontier

1. frontier (n.)

a wilderness at the edge of a settled area of a country

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2. frontier (n.)

an undeveloped field of study; a topic inviting research and development

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3. frontier (n.)

an international boundary or the area (often fortified) immediately inside the boundary

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4. frontier settlement (n.)

a settlement on the frontier of civilization

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5. triple frontier (n.)

the border area where Argentina and Brazil and Paraguay meet; an active South American center for contraband and drug trafficking and money laundering; a suspected locale for Islamic extremist groups

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