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informal

Synonyms and Antonyms of informal

1 not rigidly following established form, custom, or rules

  • an informal meeting allowed everyone to get acquainted
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2 not designed to be worn only on special occasions

  • chose an informal flowery dress
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3 used in or suitable for speech and not formal writing

  • the use of informal language in a scholarly article is really inappropriate
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to express warning or disapproval

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