Antonyms and Synonyms for ascertain

1. ascertain (v.)

establish after a calculation, investigation, experiment, survey, or study

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2. ascertain (v.)

be careful or certain to do something; make certain of something

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3. ascertain (v.)

find out, learn, or determine with certainty, usually by making an inquiry or other effort

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4. ascertain (v.)

learn or discover with certainty

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