Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
which invalidates
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "which invalidates" is correct and usable in written English
It is often used to explain or clarify a specific aspect of a sentence or situation. Example: The patient was given the wrong medication, which invalidates the test results of their blood work.
✓ Grammatically correct
Science
Academia
News & Media
Wiki
Alternative expressions(20)
which negates
which disproves
which contradicts
that is inconsistent with
that is at odds with
that is contrary to
that contradicts
that is compatible with
that are incompatible with
that opposes
that is not aligned with
that is divergent from
that is disparate from
is at odds with
that diverges from
which runs counter to
that supports
that poses
which rebuts
which belies
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
34 human-written examples
Which invalidates your career – and your life".
News & Media
The doctrine of duress, which invalidates such agreements, hurts the coerced party.
Academia
None of which invalidates his right to number crunch and take a view.
News & Media
Petitioner contends that this holding was error which invalidates the exclusion order.
Academia
LAURA: Let's all enjoy drinking in moderation and celebrating our various approaches to life, none of which invalidates the others.
News & Media
Nothing has taken place since which invalidates our fundamental policies, policies based on friendship for all of the peoples of the area.
Academia
Human-verified similar examples from authoritative sources
Similar Expressions
26 human-written examples
The RG approach is simpler, more straightforward, and also contains information about the instabilities which invalidate the Fermi-liquid approximation.
Academia
He wrote the majority opinion in a 1976 case, National League of Cities v. Usery, which invalidated federal labor regulations for state employees.
News & Media
Roe v. Wade, which invalidated state laws banning abortion around the country, is the consummate act of liberal judicial activism.
News & Media
Planetary gearboxes significantly differ from fixed-axis gearboxes and exhibit unique behaviors, which invalidate fault diagnosis methods working well for fixed-axis gearboxes.
Science
The appeal arises from an inter partes review ("IPR") conducted by the PTAB, which invalidated Oil States Energy LLC's ("Oil States") US Patent No. 6,179,053 ("'053").
Academia
Expert writing Tips
Best practice
Ensure the subject being 'invalidated' is clearly defined to avoid ambiguity for the reader.
Common error
Avoid using "which invalidates" when it is unclear whether 'which' refers to the last noun mentioned or the entire preceding situation. If the sentence is confusing, consider starting a new sentence with 'This invalidates...'
Source & Trust
89%
Authority and reliability
4.9/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which invalidates" serves as a relative clause fragment, typically functioning as a non-restrictive relative clause. According to Ludwig AI, it is used to describe a consequence where a preceding fact or action strips something of its legal force, logical truth, or scientific value.
Frequent in
Science
55%
Academia
25%
News & Media
15%
Less common in
Wiki
3%
Encyclopedias
1%
Social Media
1%
Ludwig's WRAP-UP
The phrase "which invalidates" is a precise linguistic tool used to denote the cancellation of legitimacy or effectiveness. Ludwig AI shows its widespread use across Science, Law, and Formal Journalism to point out fatal flaws in arguments, contracts, or experiments. Whether it is an "overvote" that invalidates a ballot or a "singular matrix" that invalidates a mathematical proof, the phrase serves as a bridge between a cause and its negative consequence. Writers should ensure they use a comma when the phrase refers to the entire preceding clause and choose it when they need to convey a definitive, objective loss of status or truth.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
which nullifies
Suggests a formal or legal cancellation of power or effect.
thereby invalidating
Adds a transition word to emphasize the causal link.
which renders void
More formal and often used in legal contexts to describe something that no longer has force.
which negates
Used when one thing cancels out the existence or truth of another.
effectively invalidating
Uses a participial phrase to describe the result of an action.
which voids
A direct, active verb often used in contractual or mechanical contexts.
which cancels out
Slightly more informal, used when two things offset each other.
which makes it invalid
A more explicit, slightly wordier construction.
which undermines
Implies that the basis or foundation of something is weakened rather than completely destroyed.
which disproves
Specifically used in scientific or argumentative contexts regarding theories or facts.
FAQs
How do I use "which invalidates" in a sentence?
You use it as a relative clause to explain the result of an action, for example: "The researcher used contaminated equipment, "which invalidates" the final results of the study."
What can I say instead of "which invalidates"?
You can use synonyms like "which nullifies", "which negates", or "which renders void" depending on how formal you want to be.
Is "which invalidates" formal?
Yes, it is highly appropriate for formal, academic, legal, and scientific writing, as seen in examples from Ludwig AI sourced from Harvard and Yale.
Should I use "that invalidates" or "which invalidates"?
Use "that invalidates" for restrictive clauses that define a specific object (no comma), and use "which invalidates" (usually with a comma) for non-restrictive clauses that add extra information about a situation.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
89%
Authority and reliability
4.9/5
Expert rating
Real-world application tested