invalidate
To make an argument, result, or claim not valid; to nullify through logical disproof
Examples
In a meeting
“This new finding invalidates our previous hypothesis about customer behavior.”
Over coffee
“One exception doesn't invalidate the entire pattern we've noticed.”
Why this word
cancel
invalidate means to render legally or logically void, while cancel just means to call off or discontinue
disprove
invalidate emphasizes nullifying validity or legal standing, while disprove focuses on showing something false
nullify
invalidate specifies removing validity or legal force, while nullify is broader about making something of no effect
Usage tip
Use when showing that evidence or logic undermines a conclusion or argument
Etymology
Latin: in- (not) + validus (strong), meaning to make not strong or not valid
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Related words
synthesis
The combining of separate elements to form a coherent whole
syllogism
A logical argument with two premises leading to a conclusion
empiricism
The belief that knowledge comes from observation and experience
paradox
A seemingly contradictory statement that may nonetheless be true
premise
An underlying assumption on which reasoning is based
dogma
A principle or belief accepted without question