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Common words appear frequently in written and spoken language across many genres from radio to academic journals.
Informal words should be reserved for casual, colloquial communication.
adj illegal
See more synonyms for bootleg

Antonyms for more unsanctioned

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

Antonyms

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

Antonyms

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