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
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Recent Examples of invalid
Greg Evans, Deadline, 29 Dec. 2025
The whole subsequent chain of transactions must be invalid.
—David Frum, The Atlantic, 27 Dec. 2025
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
He was later charged with driving with an invalid license.
—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.
—Recent Examples of Synonyms for invalid
Verb
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The driver of a 2024 Chevrolet Malibu was not impaired and was uninjured, police said.—
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Police do not believe the driver was impaired or driving in a careless manner, the release said.—
Verb
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After all, there are signs that the economy is improving (unemployment and inflation are declining), but after the economic struggles of recent years, and with household debt still high, an additional financing source won't hurt, either.—
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Critics say the practice has driven up home prices and hurt affordability, but some housing experts argue the president’s proposal would have minimal effect on overall housing supply.—
Verb
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Look for urea-free fertilizer that helps the plant absorb nitrogen more efficiently, and make sure to flush out the potting medium with plain water each month to prevent salt buildup that can harm the roots.—
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The settlement is a landmark moment for Garcia, as well as other families who have claimed that their teens were harmed by what have been described as sexualized and interactive virtual companions.—
Verb
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Some government offices and financial institutions were damaged during the unrest, residents said, while merchants reported being ordered to reopen businesses despite ongoing security operations.—
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The gunfire damaged the car’s rear end, trunk, tail light and rear window louver, according to court documents.—
Verb
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When Dobbins was first injured, a source close to him said the best-case scenario for his return was if the Broncos made the Super Bowl.—
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Dellandrea was injured in the Sharks’ game on Tuesday against the Columbus Blue Jackets as his right leg struck the post after he was inadvertently tripped while driving to the net.—
Verb
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Others were exhausted from hearing about some of the wealthiest people on the planet barely holding it together.—
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But the Beige Book suggested that time may now be nigh, with businesses having exhausted their pre-tariff stockpiles and now have a need to pass the cost increases to consumers.—
Verb
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The only time the Fitzgerald made it to its homeport of Milwaukee was when the ship was laid up during the 1959 steel strike, from June to October.—
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Female moths can lay up to 500 eggs at a time.7 Pantry moths are most destructive in their larval stage, so discouraging this stage will help prevent the infestation from spreading.—
Verb
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Hobbs pointed out that some residents’ wells have gone dry as water levels have plummeted in the Ranegras Plain, and that the land has been sinking as the aquifer is depleted.—
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Howe’s exhausted and injury-depleted defence did not need an additional half an hour, followed by the stress of a shootout, just three days before a Carabao Cup semi-final first leg against Manchester City.—
Cite this Entry
“Invalid.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/invalid. Accessed 20 Jan. 2026.
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