Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb controvert
2 senses of controvert
Sense 1
oppose, controvert, contradict -- (be resistant to; "The board opposed his motion")
=> refute, rebut -- (overthrow by argument, evidence, or proof; "The speaker refuted his opponent's arguments")
Sense 2
refute, rebut, controvert -- (prove to be false or incorrect)
=> disprove, confute -- (prove to be false; "The physicist disproved his colleagues' theories")