You searched for: “incontestably
incontestably (adverb), more incontestably, most incontestably
1. Conveying how something is beyond being debatable or challenged: It is incontestably true that Sam didn't pass the exam because he answered all the questions incorrectly!
2. Relating to how it is impossible to question the accuracy of a fact because of its being obviously correct: It is incontestably true that the earth rotates around the sun.
3. Etymology: from Latin incontestabilis, from in-, "not" + contestabilis, "arguable."
This entry is located in the following units: -ably (page 7) testi-, test- (page 2)