Thesaurus
Synonyms & Antonyms of ascertain
1
to come to an awareness of
- was immediately able to ascertain that the girl was uncomfortable talking about her life at home
Synonyms for ascertain
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2
to come upon after searching, study, or effort
- ascertained that their old colonial-era house had once functioned as a tavern
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Antonyms for ascertain
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Merriam-Webster unabridged
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Time Traveler for ascertain
The first known use of ascertain was in the 15th century
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