SUPPOSITIOUS Synonyms: 47 Similar and Opposite Words

suppositious

adjective

Definition of suppositious

as in supposititious

Related Words

Relevance

Dissimilar Words

Example Sentences

Recent Examples of Synonyms for suppositious

Adjective

These spurious claims about childhood vaccines will only increase vaccine hesitation with harmful results.

— Sun Sentinel Editorial Board, Sun Sentinel, 13 Aug. 2026
Researchers found that models can score well on standard benchmarks while relying on spurious correlations in their training data.

— Lucas Zhao, Forbes.com, 27 July 2026

Definition of spurious

Adjective

Earlier today, key members of the viral pseudo-political movement, Cockroach Janta Party, were detained for protesting without permission.

— Priyanka Salve, CNBC, 13 Oct. 2026
The audience gets glimmers of Katie and Greg’s relationship, but the show is bogged down by dull characters like the policeman who seems to have it out for Greg, and even by its focus on Archie’s point of view, which is just a depiction of narcissism and a formulaic pseudo-midlife crisis.

— Aramide Tinubu, Variety, 5 Mar. 2026

Definition of pseudo

Adjective

Many fact-checking websites then sprang into action and traced the root of this obviously bogus story to an interview being mistranslated overseas.

— Brian Davids, HollywoodReporter, 3 Oct. 2026
Attackers increasingly use fake CAPTCHA pages and bogus error messages to tell victims to open Windows Run, PowerShell, Command Prompt or Terminal.

— Kurt Knutsson, FOXNews.com, 22 Sep. 2026

Definition of bogus

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.

Browse Nearby Words

suppositions

suppositious

supposititious

See all Nearby Words

Cite this Entry

Style

“Suppositious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/suppositious. Accessed 19 Oct. 2026.

Copy Citation

Synonyms of suppositious

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

fervid

Popular in Grammar & Usage

'Affect' vs. 'Effect'

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

The Exceptions of '-s' and '-es' Plurals

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

What's the difference between 'fascism' and 'socialism'?

Popular in Wordplay

16 Food Words Recently Added to the Dictionary

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't

7 Words for Bad Endings and Rough Situations

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

Popular

'Affect' vs. 'Effect'

16 Food Words Recently Added to the Dictionary

The Real Origin of 'Supercalifragilistic'

Games & Quizzes