ATOMIC Synonyms: 119 Similar and Opposite Words

atomic

adjective

ə-ˈtä-mik

Definition of atomic

as in tiny

very small in size made atomic adjustments to the clock's mechanism to keep it from whirring as it ran

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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 atomic Writing in the atomic age, Hume considered the attraction of the city’s old, lost objects. — Sam Knight, New Yorker, 17 July 2026 This means that even atomic versions of oxygen and nitrogen would be retained. — John Timmer, ArsTechnica, 16 July 2026 When Klaus Fuchs was arrested by the British in early 1950 for passing atomic plans to the Soviets, his testimony led American authorities to Harry Gold, a chemist. — Amy Weiss-Meyer, The Atlantic, 10 July 2026 But even after all these years, the monster’s atomic breath is pretty potent. — Jennifer Day, Chicago Tribune, 9 July 2026 See All Example Sentences for atomic

Recent Examples of Synonyms for atomic

Adjective

Things slowly improved as drummers were encouraged at Arrowhead, but even a big turnout of 20,000 fans looked tiny in a stadium that could seat four times that number.

— Pete Grathoff, Kansas City Star, 24 July 2026
Unlike a felt-tip pen, which delivers a relatively consistent line, a brush liner behaves more like a tiny paintbrush.

— Marci Robin, Allure, 24 July 2026

Definition of tiny

Adjective

The minuscule particles can lead to breathing problems like bronchitis and cause inflammation that aggravates diabetes, heart disease and other health conditions.

— Dakota Smith, CNN Money, 14 July 2026
Scientists at Aalto University in Finland have built the world’s first cyclic heat engine, operating inside a superconducting circuit and using a minuscule amount of heat from a quantum refrigerator to convert it into useful work.

— Ameya Paleja, Interesting Engineering, 13 July 2026

Definition of minuscule

Adjective

Unlike their more useful counterparts, silicon-29 and germanium-73 possess nuclear spin—a tiny magnetic property that acts like countless microscopic magnets scattered throughout the material.

— Rupendra Brahambhatt, Interesting Engineering, 26 July 2026
That microscopic shift alters the laser beams ever so slightly, producing a tiny flicker of light that alerts scientists to a distant cosmic event.

— Sharmila Kuthunur, Space.com, 25 July 2026

Definition of microscopic

Adjective

The suits are equipped with miniature oxygen generators that allow the cockroaches to survive for up to three hours underwater or in low-oxygen conditions.

— New Atlas, New Atlas, 18 July 2026
What if, with the aid of sensors and miniature robotics, engines could be built to self-repair?

— Beena Ammanath, Forbes.com, 17 July 2026

Definition of miniature

Browse Nearby Words

atom

atomic

atomic clock

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“Atomic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/atomic. Accessed 28 Jul. 2026.

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Synonyms of atomic

adjective

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