negate

What does "negate" mean?
To negate something means to declare it to be false or invalid, or to cause it to become ineffective. Imagine a mathematical "minus" sign applied to an equation, or a legal clause that completely cancels out a previous agreement; it is the act of striking something out or rendering it null. In usage, it is often found in formal, academic, or legal contexts. You might "negate" an effect, a claim, or a scientific hypothesis. It is stronger than simply "denying"—it implies that the original thing no longer holds any weight or existence because of the current action.
"negate" in conversation
Discussing scientific results
Did the new data support your theory?
Did the new data support your theory?
No, it actually served to negate our initial hypothesis.
No, it actually served to negate our initial hypothesis.
Used here to indicate that the new evidence makes the previous theory invalid.
Legal contract review
This clause will negate the liability protections in section four.
This clause will negate the liability protections in section four.
So we are unprotected if something goes wrong?
So we are unprotected if something goes wrong?
Common in formal settings where one action nullifies another.
"negate" in a sentence
His bad attitude helped to negate his hard work.
His bad attitude helped to negate his hard work.
The new evidence served to negate the witness's testimony.
The new evidence served to negate the witness's testimony.
The treaty contains a provision that serves to negate any previous territorial claims.
The treaty contains a provision that serves to negate any previous territorial claims.