SUPPOSITIONAL Synonyms: 50 Similar and Opposite Words

suppositional

adjective

Definition of suppositional

as in hypothetical

existing only as an assumption or speculation concepts regarding the origin and structure of the universe must perforce be suppositional

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Recent Examples of Synonyms for suppositional

Adjective

This specific scenario is still hypothetical, but in general, mapmakers using their powers to litigate factional and personal grievances isn’t hard to imagine.

— Jon Allsop, New Yorker, 10 Oct. 2026
Lawyers had to mark up a hypothetical patent that, according to the blog post, contained many substantive and stylistic errors.

— Nick Lichtenberg, Fortune, 10 Oct. 2026

Definition of hypothetical

Adjective

Under the concept True Dystopic, the #LINK Vertical program brings together auteur documentary and genre cinema, using real locations in Rio de Janeiro as settings for imagining speculative futures.

— Rafa Sales Ross, Variety, 6 Oct. 2026
The governor, who is up for reelection in November, said speculative proposals to build data centers had swamped Pennsylvania.

— Salena Zito, Washington Post, 6 Oct. 2026

Definition of speculative

Adjective

The dizzying evolution of AI picks up speed when Ilya gets Sam worked up about next-level AGI, or Artificial General Intelligence, theoretical technology with human-level cognitive capabilities.

— David Rooney, HollywoodReporter, 6 Oct. 2026
Each resolves or makes substantial progress on a major open question in mathematics or theoretical computer science, the company says.

— Joseph Howlett, Scientific American, 6 Oct. 2026

Definition of theoretical

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

supposition

suppositional

suppositions

See all Nearby Words

Cite this Entry

Style

“Suppositional.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/suppositional. Accessed 14 Oct. 2026.

Copy Citation

Synonyms of suppositional

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

deportment

Popular in Grammar & Usage

Do You Need a New Language Peeve?

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

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

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

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

Popular in Wordplay

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't

7 Words for Bad Endings and Rough Situations

The Words of the Week - Oct. 9

Why do we call it a 'flea market'?

Popular

Do You Need a New Language Peeve?

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't

Games & Quizzes