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
News Service Of Florida, Sun Sentinel, 30 Jan. 2026
However, DeGeneres' lawyers are arguing that delivery of the suit should be declared invalid because the attempts to serve the host with the papers had been made at the business management firm, NKSFB, LLC.
—Becca Longmire, PEOPLE, 27 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
The state attributed the delay in posting numbers to scrutiny of potentially invalid signatures.
—News Service Of Florida, Sun Sentinel, 30 Jan. 2026
However, DeGeneres' lawyers are arguing that delivery of the suit should be declared invalid because the attempts to serve the host with the papers had been made at the business management firm, NKSFB, LLC.
—Becca Longmire, PEOPLE, 27 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
-
Aguilar was charged with driving while impaired in Cabarrus County in 2020, during Cooper’s governorship, but failed to appear in court in 2022, according to court records.—
Stepheny Price,
FOXNews.com,
4 Feb. 2026
-
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
-
Investors don’t want to inadvertently cheer on weakening job growth that could negatively impact consumer spending and economic growth, hurting stock prices.—
John Towfighi,
CNN Money,
11 Feb. 2026
-
Miami’s 39 sacks ranked 16th in the league, and the Dolphins were badly hurt by their inability to turn several pressures into sacks.—
Barry Jackson,
Miami Herald,
10 Feb. 2026
Verb
-
Prosecutors believe other minors may have been harmed and are asking any additional victims, or people with knowledge of Ramstead’s alleged crimes, to contact the Los Angeles Police Department’s Juvenile Division at (818) 374-5415.—
Clara Harter,
Los Angeles Times,
10 Feb. 2026
-
Court records show in the last year, numerous other members of 764 and similar groups have been charged with exploiting and harming minors.—
Curt Devine,
CNN Money,
10 Feb. 2026
Verb
-
In some cases, UNIFIL vehicles were damaged.—
Arkansas Online,
Arkansas Online,
8 Feb. 2026
-
During media interviews after Sunday’s win, Johnson revealed that her gold medal was already damaged.—
Rachel Roberts,
Idaho Statesman,
8 Feb. 2026
Verb
-
Dozens more were injured, many suffering serious or life-threatening injuries.—
Alexandra Banner,
CNN Money,
11 Feb. 2026
-
Italy’s national fire and rescue service, Vigili del Fuoco, reported that, over the weekend, two people died and one was seriously injured in Alpe Meriggio in Valtellina after being caught in an avalanche that fatally buried at least one of the victims.—
Bonny Chu,
FOXNews.com,
11 Feb. 2026
Verb
-
At some point, those fuel sources will be exhausted, no further energy will be naturally extracted from what remains within them, and those once-brilliant objects will fade away into darkness.—
Big Think,
Big Think,
6 Feb. 2026
-
On Wednesday, more than 200 repair crews were at work in Kyiv to restore power, according to the Ukrainian Energy Ministry, which said that staff were exhausted and would be rotated.—
Arkansas Online,
Arkansas Online,
5 Feb. 2026
Verb
-
Texas Christian University Horned Frogs forward Marta Suárez (7) lays up a first half shot against the Houston Cougars during the first half at Schollmaier Arena in Fort Worth, February 4, 2026.—
Dallas Morning News,
Dallas Morning News,
5 Feb. 2026
-
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
Verb
-
The Canadians are a game behind after their tournament opener against Finland was postponed after the Finnish roster was depleted by a stomach virus.—
John Wawrow,
Chicago Tribune,
9 Feb. 2026
-
And as a result, this critical infrastructure project was frozen during that shutdown in which the entirety of the federal government was depleted of funds.—
ABC News,
ABC News,
8 Feb. 2026
Cite this Entry
“Invalid.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/invalid. Accessed 14 Feb. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
