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.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of invalid
ABC News, 14 Apr. 2026
Because the price hikes were found to be imposed without providing customers with valid justifications, the court ruled that the new prices are invalid and ordered Netflix to refund affected subscribers.
—Scharon Harding, ArsTechnica, 3 Apr. 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
The court is considering an appeal of a Tazewell County judge’s ruling that the amendment is invalid because lawmakers violated their own rules while passing it.
—ABC News, 14 Apr. 2026
Because the price hikes were found to be imposed without providing customers with valid justifications, the court ruled that the new prices are invalid and ordered Netflix to refund affected subscribers.
—Scharon Harding, ArsTechnica, 3 Apr. 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
-
And those bugs often impair functionality and growth.—
Eliza Strickland,
IEEE Spectrum,
30 Apr. 2026
-
Lead impairs cognition and cadmium harms the kidneys.—
Anton L. Delgado,
Los Angeles Times,
29 Apr. 2026
Verb
-
When Yoon was in office, Kim was embroiled in a series of scandals that hurt her husband’s approval rating and provided relentless political ammunition to his rivals.—
ABC News,
ABC News,
28 Apr. 2026
-
When Yoon was in office, Kim was embroiled in scandals that hurt her husband’s approval rating and provided political ammunition to his rivals.—
Hyung-Jin Kim,
Los Angeles Times,
28 Apr. 2026
Verb
-
This activity harms unique ecosystems and significantly impacts artisanal and small-scale fishers in the region.—
Brittney Melton,
NPR,
27 Apr. 2026
-
No human journalist was harmed in this experiment.—
CA Earthquake Bot,
Sacbee.com,
27 Apr. 2026
Verb
-
Driving through deep water can also damage a vehicle's mechanical and electrical systems.—
CA Weather Bot,
Sacbee.com,
26 Apr. 2026
-
Data from the German Aerospace Center, which analyzes global development, cross-referenced with images from ICEYE and Vantor show that buildings making up the peripheries of the cities damaged by this year’s fires mostly sprang up in the 2000s and 2010s.—
Stefano Pozzebon,
CNN Money,
26 Apr. 2026
Verb
-
Police said the driver of the SUV was not injured and is cooperating with investigators.—
Shambhavi Rimal,
Fort Worth Star-Telegram,
28 Apr. 2026
-
Joshua Jahn, 29, killed a detainee, injured two others and fatally shot himself.—
Michael Ruiz,
FOXNews.com,
28 Apr. 2026
Verb
-
Repole is exhausting, but never exhausted.—
Jerry Brewer,
New York Times,
30 Apr. 2026
-
But within a few years, they were exhausted from constant touring with occasional bickering.—
Kory Grow,
Rolling Stone,
29 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
-
Summit's Javon Ross (33) lays up a ball as Lovejoy's Maddox Johnson (2) defends in the second half of a high school basketball game, Class 5A Division II state semifinal, at SUM’s Moody Coliseum, Tuesday, March 10, 2026, in University Park.—
Dallas Morning News,
Dallas Morning News,
11 Mar. 2026
Verb
-
Federal officials say possible foul play is suspected, noting Hou’s bank accounts were depleted before law enforcement was even notified of his disappearance.—
Stepheny Price,
FOXNews.com,
27 Apr. 2026
-
Since the 1950s, the Center for Strategic and International Studies estimates that 70-95% of fish stocks in the region have been depleted and are at risk of collapse.—
Brittney Melton,
NPR,
27 Apr. 2026
Cite this Entry
“Invalid.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/invalid. Accessed 1 May. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
