refutation

A refutation proves that something is false. Refutations pop up often in law debates and philosophical arguments.

While a validation tells you something is true, a refutation does the opposite: it says or proves that something is untrue, refuting the claim. In court, a witness might offer a refutation of a suspect's alibi to show he's lying. If someone calls you a liar, you probably should give them a refutation — make the case that you're a person who tells the truth.

Definitions of refutation
1

n the act of determining that something is false

Synonyms:
disproof, falsification, falsifying, refutal
Type of:
determination, finding
the act of determining the properties of something, usually by research or calculation

n the speech act of answering an attack on your assertions

“his refutation of the charges was short and persuasive”
Synonyms:
defence, defense
Types:
confutation
the speech act of refuting conclusively
rebuttal
the speech act of refuting by offering a contrary contention or argument
Type of:
answer
the speech act of replying to a question

n any evidence that helps to establish the falsity of something

Synonyms:
disproof, falsification
Types:
reductio, reductio ad absurdum
(reduction to the absurd) a disproof by showing that the consequences of the proposition are absurd; or a proof of a proposition by showing that its negation leads to a contradiction
confutation
evidence that refutes conclusively
counterexample
refutation by example
Type of:
evidence, grounds
your basis for belief or disbelief; knowledge on which to base belief

Sign up, it's free!

Whether you're a student, an educator, or a life-long learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.