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
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Recent Examples of invalid
Kamal Morgan, Fort Worth Star-Telegram, 23 Jan. 2026
Court documents contained no explanation of why, in an industry focused on flight and airport safety, the airlines would not have recognized the credentials as invalid.
—CNN Money, 22 Jan. 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
Both parties claim problems such as invalid signatures and missing or incorrect voter information on petitions that judicial candidates submit to secure a place on the ballot.
—Kamal Morgan, Fort Worth Star-Telegram, 23 Jan. 2026
Court documents contained no explanation of why, in an industry focused on flight and airport safety, the airlines would not have recognized the credentials as invalid.
—CNN Money, 22 Jan. 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
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Excess glucose also impairs our brain's functioning.—
Melissa Rudy,
FOXNews.com,
29 Jan. 2026
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This is Nissan’s premiere safety tech system, taking over braking and steering like an extra-smart cruise control, or if the driver is impaired or incapacitated.—
Kristin Shaw,
Forbes.com,
29 Jan. 2026
Verb
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Other concerns are that power-hungry data centers fed by natural gas generators can hurt air quality, consume water and intensify climate damage.—
Conor Harrison,
The Conversation,
3 Feb. 2026
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Australian freestyle skier Laura Peel hurt her knee in a training camp ahead of the Milan Cortina Winter Olympics, raising doubts about her participation in a fourth Games.—
Mark Scaglione,
NBC news,
3 Feb. 2026
Verb
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Under her, the department is harming citizens, not protecting them.—
Arkansas Online,
Arkansas Online,
27 Jan. 2026
-
Afterwards, several of the people in the car with Vega-Mendoza said they were terrified of being harmed by their pursuers.—
Nate Gartrell,
Mercury News,
27 Jan. 2026
Verb
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Regarding the third issue, cracking indicates the spark plug is damaged beyond repair and must be replaced.—
David Beaulieu,
The Spruce,
1 Feb. 2026
-
His own home was seriously damaged in the fire, forcing him to live elsewhere for the past year, and his mother-in-law’s home was destroyed.—
Richard Winton,
Los Angeles Times,
31 Jan. 2026
Verb
-
The policies cover fires but not common perils such as water damage or liability if someone is injured on a property.—
Los Angeles Times,
Los Angeles Times,
3 Feb. 2026
-
One person was injured Monday evening after a vehicle crashed into a business in Kansas City’s Crossroads Arts District.—
Caroline Zimmerman,
Kansas City Star,
3 Feb. 2026
Verb
-
On its upward climb, the SLS will quickly exhaust the fuel in all six of its first-stage engines, and they will be jettisoned, leaving only the rocket's upper stage and the Orion spacecraft to reach orbit.—
Jeffrey Kluger,
Time,
29 Jan. 2026
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But freedom of expression is a constant pursuit, as natural as breathing, and silencing it is an imperfect practice that exhausts the oppressor and energizes the oppressed.—
David Ehrlich,
IndieWire,
28 Jan. 2026
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.—
Caitlin Looby,
jsonline.com,
4 Nov. 2025
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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.—
Lauren Wicks,
Southern Living,
28 Oct. 2025
Verb
-
When engagement sits at 20% globally, that means 8 out of 10 people show up to jobs that deplete them.—
Vibhas Ratanjee,
Forbes.com,
27 Jan. 2026
-
The Capitol Corridor shares a fleet of locomotives with the San Joaquin Joint Powers Authority, but a pool of standby backup trains has been depleted.—
Don Sweeney,
Sacbee.com,
26 Jan. 2026
Cite this Entry
“Invalid.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/invalid. Accessed 5 Feb. 2026.
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