UNSUPPORTED Synonyms: 92 Similar and Opposite Words

unsupported

adjective

ˌən-sə-ˈpȯr-təd

Definition of unsupported

as in unreasonable

having no basis in reason or fact an unsupported claim that the structure was built by Vikings

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

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 unsupported The defense said the government’s theory is unsupported and urged the judge to dismiss the charges. — Kaelan Deese, The Washington Examiner, 7 Oct. 2026 Short text, editing, translation and unsupported models can all produce undetected content. — Aamir Khollam, Interesting Engineering, 5 Oct. 2026 Make Failure Visible Early A pilot should intentionally test emergencies, cancellations, incomplete patient information, holiday hours, insurance questions, human handoffs and unsupported requests. — Manjot Pal, Forbes.com, 1 Oct. 2026 In 2018, a university climate survey revealed Native students felt the most unsupported on campus, according to Reed. — Emma Hall, Sacbee.com, 16 Sep. 2026 See All Example Sentences for unsupported

Recent Examples of Synonyms for unsupported

Adjective

But Michael Edney, who worked at the OLC under Bush, said the opinion’s reading of executive privilege was not unreasonable, given the importance that some presidents place on outside consultation.

— Perry Stein, Washington Post, 18 Oct. 2026
Both sides have accused each other of being unreasonable and of ignoring practical concerns about voting and election security, though in very different ways.

— Kevin Rector, Los Angeles Times, 17 Oct. 2026

Definition of unreasonable

Adjective

Internal affairs complaints The lawsuit identifies five internal complaints filed against Sumstad between December 2022 and October 2025 and alleges each was dismissed, deemed unsubstantiated or ended in her exoneration.

— Ben Wheeler, Kansas City Star, 24 Sep. 2026
Somehow this unsubstantiated story became internationally known with almost no major media explicitly reporting it, and before the modern version of the internet.

— Allen Salkin, HollywoodReporter, 14 Sep. 2026

Definition of unsubstantiated

Adjective

Now, Amy Helm has countersued the studio, alleging that her successor, Brian Parillo, used invalid corporate actions to take control of the famed music venue in Woodstock, New York, and improperly obtained voting power from Levon Helm’s widow.

— Nina Corcoran, Pitchfork, 20 Oct. 2026
The taxpayers’ attorney, Abraham Wagner, cited four cases to support his argument that an IRS notice assessing additional taxes was invalid.

— Kaitlin Newkirk, The Conversation, 14 Oct. 2026

Definition of invalid

Browse Nearby Words

unsupportable

unsupported

unsure

See all Nearby Words

Cite this Entry

Style

“Unsupported.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unsupported. Accessed 21 Oct. 2026.

Copy Citation

Synonyms of unsupported

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

jilt

Popular in Grammar & Usage

Merriam-Webster’s Great Big List of Words You Love to Hate

'Can' vs. 'May'

'Affect' vs. 'Effect'

More Commonly Mispronounced Words

Is it 'nerve-racking' or 'nerve-wracking'?

Popular in Wordplay

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Did 'orange' the fruit or the color come first?

Even More Bird Names that Sound Like Insults (and Sometimes Are)

12 Lovely and Unusual Words for the Natural World

Popular

Merriam-Webster’s Great Big List of Words You Love to Hate

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Games & Quizzes