INFINITESIMAL Synonyms: 119 Similar and Opposite Words

infinitesimal

adjective

(ˌ)in-ˌfi-nə-ˈte-sə-məl

Definition of infinitesimal

as in tiny

very small in size a soft drink with only an infinitesimal amount of caffeine

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 infinitesimal The amount may be infinitesimal—white sugar and bottled water are sometimes purified with charred animal bones, for instance—but some hypersensitive alpha-gal patients avoid the risk anyway. — Burkhard Bilger, New Yorker, 29 June 2026 Mathematicians can construct a form of calculus without infinity, for instance, cutting infinitesimal limits out of the picture entirely. — Quanta Magazine, 29 Apr. 2026 That’s why instances of undocumented immigrants voting are infinitesimal. — Linh Tat, Oc Register, 5 May 2026 But consider for a moment what autonomous vehicles actually do that only an infinitesimal number of Maryland drivers actually manage. — John Seng, Baltimore Sun, 30 Mar. 2026 See All Example Sentences for infinitesimal

Recent Examples of Synonyms for infinitesimal

Adjective

Even tiny electromagnetic disturbances can disrupt the quantum states that perform calculations, reducing the accuracy and reliability of the system.

— Aamir Khollam, Interesting Engineering, 3 July 2026
What Uranus will look like Uranus should resemble a tiny greenish star and will appear only about 1/63 as bright as Mars.

— Joe Rao, Space.com, 3 July 2026

Definition of tiny

Adjective

How crawling with minuscule life indifferent to the one that ended here.

— Emily Ruskovich, The Atlantic, 7 July 2026
Still, the game’s result seemed minuscule when stacked against Alfonso’s personal tragedy and the earthquake’s destruction in Venezuela.

— Liana Handler Follow, Los Angeles Times, 6 July 2026

Definition of minuscule

Adjective

Touching infested water, even just a splash, can risk infection, as microscopic larvae swimming along the surface are able to wriggle through skin.

— William McCarthy, NPR, 4 July 2026
The culprit, Cyclospora cayetanensis, is a microscopic parasite that’s found in human feces.

— Caroline Kee, NBC news, 3 July 2026

Definition of microscopic

Browse Nearby Words

infinite

infinitesimal

infinitesimally

See all Nearby Words

Podcast

Cite this Entry

Style

“Infinitesimal.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infinitesimal. Accessed 8 Jul. 2026.

Copy Citation

Synonyms of infinitesimal

adjective

Example Sentences

Browse Nearby Words

Podcast

Cite this Entry

More from Merriam-Webster on infinitesimal

More from Merriam-Webster

Word of the Day

gambol

Popular in Grammar & Usage

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Commonly Misspelled Words

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Popular in Wordplay

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

One-Word Oxymorons: Bittersweet, Spendthrift, and More

Ten Words Ending with a Silent ‘T’

12 Lovely and Unusual Words for the Natural World

Popular

Is that lie 'bald-faced' or 'bold-faced'?

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

Games & Quizzes