Which word means to destroy the validity of something?

The word "negate" means to nullify or make ineffective, particularly in the context of destroying the validity or truth of an assertion, claim, or argument. When something is negated, it is rendered void, often by providing evidence or reasoning that contradicts it. This term is commonly used in logic and philosophy, where one might negate a statement by proving it false.

While "nullify" also means to invalidate or cancel out something, "negate" specifically implies the act of destroying validity through logical contradiction or refutation, making it a fitting choice for this particular question.

In contrast, "penchant" refers to a strong or habitual liking for something, which does not relate to validity or destruction. "Mundane" describes something as ordinary or commonplace, particularly in contrast to the extraordinary, and similarly does not pertain to the concept of validity or negation. Both of these options do not fit the context of the question regarding the destruction of validity.