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antediluvian

Synonyms and Antonyms of antediluvian

dating or surviving from the distant past
  • found evidence in the Middle East of an antediluvian people previously unknown to history
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antediluvian

Synonyms and Antonyms of antediluvian

a person with old-fashioned ideas
  • thought his dad was an antediluvian for refusing to use any social media
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