as in fragile
chronically or repeatedly suffering from poor health
an old and now invalid woman who rarely gets out anymore
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
1
as in null
having no legal or binding force
the treaty is invalid once one side violates it
Synonyms & Similar Words
Antonyms & Near Antonyms
2
as in erroneous
not being in agreement with what is true
that's an invalid assumption on your part
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in unreasonable
not using or following good reasoning
an argument which has one untrue premise is invalid
Synonyms & Similar Words
Antonyms & Near Antonyms
4
as in unsupported
having no basis in reason or fact
an invalid claim that can be easily disproved by the facts
Synonyms & Similar Words
Antonyms & Near Antonyms
as in to impair
Related Words
Dissimilar Words
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
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Recent Examples of invalid
Michael Smolens, San Diego Union-Tribune, 29 Mar. 2026
Changes to the hepatitis B vaccines for newborns and COVID-19 shots made via earlier ACIP votes were deemed invalid.
—Mary Walrath-Holdridge, USA Today, 22 Mar. 2026
Caroline Frost, Deadline, 16 Mar. 2025
DeSantis's office has said all options are on the table for their fight, but a legal ruling invaliding the agreement that currently gives Disney near-total control of the district would be the easiest resolution for the governor's headache.
—Jack Birle, Washington Examiner, 8 Apr. 2023
See All Example Sentences for invalid
Adjective
Critics fear that if late counting goes away, potentially millions of legitimate votes could be deemed invalid.
—Michael Smolens, San Diego Union-Tribune, 29 Mar. 2026
Changes to the hepatitis B vaccines for newborns and COVID-19 shots made via earlier ACIP votes were deemed invalid.
—Mary Walrath-Holdridge, USA Today, 22 Mar. 2026
Verb
If this is ascertained, the BBC quotes an LA attorney saying this would render Hackman’s will invalid, and mean his children could have a claim to the estate.
—Caroline Frost, Deadline, 16 Mar. 2025
DeSantis's office has said all options are on the table for their fight, but a legal ruling invaliding the agreement that currently gives Disney near-total control of the district would be the easiest resolution for the governor's headache.
—Jack Birle, Washington Examiner, 8 Apr. 2023
See All Example Sentences for invalid
Recent Examples of Synonyms for invalid
Verb
-
No tougher penalties for driving impaired by pot, which public safety officials say has become a major problem.—
Joe Battenfeld,
Boston Herald,
9 Apr. 2026
-
Woods, prone in recent years to appearing in unfortunate headlines, is of course Woods seeking treatment following his March 27 arrest for suspicion of driving while impaired during a rollover car crash.—
Miami Herald,
Miami Herald,
8 Apr. 2026
Verb
-
But as long as nobody gets hurt.—
ABC News,
ABC News,
8 Apr. 2026
-
That's not to say this defeat to a major play-off rival didn't hurt.—
Richard Sutcliffe,
New York Times,
8 Apr. 2026
Verb
-
Some legislatures are attempting to find additional legal remedies for former kidfluencers who believe that they were harmed by oversharing parents.—
Jessica Winter,
New Yorker,
7 Apr. 2026
-
No human journalist was harmed in this experiment.—
CA Earthquake Bot,
Sacbee.com,
7 Apr. 2026
Verb
-
The Red Cross said the crash damaged the building and forced three families — a total of 10 people — from their homes.—
Eva Andersen,
CBS News,
6 Apr. 2026
-
Reports and satellite images later showed large parts of the city heavily damaged or reduced to rubble.—
Maliha Rahman,
Sun Sentinel,
5 Apr. 2026
Verb
-
No people were injured, but a resident's cat died in the fire.—
Jose Fabian,
CBS News,
8 Apr. 2026
-
They were normally injured, inferior and underachieving.—
Scott Fowler,
Charlotte Observer,
8 Apr. 2026
Verb
-
Floyd also reasoned that the case shouldn’t be regarded as moot, even though the players have exhausted their NCAA eligibility.—
Michael McCann,
Sportico.com,
8 Apr. 2026
-
The Horned Frogs must also replace key players who exhausted their eligibility in Big 12 Player of the Year Olivia Miles, Taylor Bigby, 6-7 center Kennedy Basham and Suarez.—
Steven Johnson,
Fort Worth Star-Telegram,
8 Apr. 2026
Verb
-
But thanks to their reproductive vigor — females can lay up to 25,000 eggs in a single season — their numbers quickly hopped out of hand.—
Shi En Kim,
AZCentral.com,
13 Mar. 2026
-
Female wasps can lay up to 200 eggs a day as long as a host insect is available.—
Barbara Gillette,
The Spruce,
9 Mar. 2026
Verb
-
Once reserves are depleted, recipients could see a 28% cut in benefits.—
Daniel de Visé,
USA Today,
4 Apr. 2026
-
Beyond the mass firings, the ranks of the department have been depleted by the departure of employees who could not stomach the new order; the resulting loss of expertise will take generations to rebuild.—
Ruth Marcus,
New Yorker,
3 Apr. 2026
Cite this Entry
“Invalid.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/invalid. Accessed 12 Apr. 2026.
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