Impossible to dispute; unquestionable: incontrovertible proof of the defendant's innocence. (adjective)
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 "incontrovertible" in a sentence
"Why is there so much passion about global warming, and why has the issue become so vexing that the American Physical Society, from which Dr. Giaever resigned a few months ago, refused the seemingly reasonable request by many of its members to remove the word "incontrovertible" from its description of a scientific issue?"
"On the plus side, Mr. Bloomberg said he is most proud of what he called the "incontrovertible evidence" that public schools improved during his tenure."
"If theres ever been a time to use the word incontrovertible, its when were talking about evolution."