Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb ascertain

4 senses of ascertain

Sense 1
determine, find, find out, ascertain -- (establish after a calculation, investigation, experiment, survey, or study; "find the product of two numbers"; "The physicist who found the elusive particle won the Nobel Prize")

Sense 2
see, check, insure, see to it, ensure, control, ascertain, assure -- (be careful or certain to do something; make certain of something; "He verified that the valves were closed"; "See that the curtains are closed"; "control the quality of the product")
       => verify -- (confirm the truth of; "Please verify that the doors are closed"; "verify a claim")

Sense 3
determine, check, find out, see, ascertain, watch, learn -- (find out, learn, or determine with certainty, usually by making an inquiry or other effort; "I want to see whether she speaks French"; "See whether it works"; "find out if he speaks Russian"; "Check whether the train leaves on time")

Sense 4
ascertain -- (learn or discover with certainty)
       => learn, hear, get word, get wind, pick up, find out, get a line, discover, see -- (get to know or become aware of, usually accidentally; "I learned that she has two grown-up children"; "I see that you have been promoted")

Antonyms of adj ascertained

1 sense of ascertained

Sense 1
ascertained, discovered, observed -- (discovered or determined by scientific observation; "variation in the ascertained flux depends on a number of factors"; "the discovered behavior norms"; "discovered differences in achievement"; "no explanation for the observed phenomena")

INDIRECT (VIA determined) -> undetermined -- (not yet having been ascertained or determined; "of undetermined species")

Similarity of adj ascertained

1 sense of ascertained

Sense 1
ascertained, discovered, observed -- (discovered or determined by scientific observation; "variation in the ascertained flux depends on a number of factors"; "the discovered behavior norms"; "discovered differences in achievement"; "no explanation for the observed phenomena")
       => determined (vs. undetermined) -- (having been learned or found or determined especially by investigation)

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