To prove to be false, invalid, or in error; refute.(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "disprove" in a sentence
"And what no one has ever managed to disprove is the fact that the market can correct itself more effectively than an outside hand, regardless of how many stupid chimps have to suffer in the process."
"Be that as it may, the main problem I have with the view that all apparent errors are problems with the interpreter rather than the Bible itself is that it seems impossible to disprove - in other words, it is unfalsifiable."
"When I'm feeling especially flippant, I'll add, "Have you scanned nuns brains to 'disprove' the theory than nuns are just religious people?""