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

One tiny decision can act as a huge catalyst for your life path to unfold in a new way.

— Meghan Rose, Glamour, 1 Aug. 2026
Spain's Ministry of the Interior said more than 48,000 migrants who arrived at the border of the tiny territory of Ceuta have been sent back to Morocco.

— Kerry Breen, CBS News, 31 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

After a while, some of those parasites begin to differentiate into egg- and sperm-like forms, which combine to form new microscopic oocysts - a process that can happen millions of times at the height of infection.

— Pien Huang, NPR, 2 Aug. 2026
Scientists have found evidence that the planet once had water, the right chemical ingredients and nutrients needed to support microscopic life.

— Paloma Chavez, PEOPLE, 31 July 2026

Definition of microscopic

Adjective

Their surfaces are filled with miniature figures, mythical creatures and motifs drawn from Chinese mythology, inviting close observation.

— Joanne Shurvell, Forbes.com, 27 July 2026
The newest high-tech weapon in the endless war against the world’s deadliest killer is a miniature hunter-killer drone that chops mosquitoes out of mid-air.

— Mrigakshi Dixit, Interesting Engineering, 27 July 2026

Definition of miniature

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atom

atomic

atomic clock

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“Atomic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/atomic. Accessed 4 Aug. 2026.

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Synonyms of atomic

adjective

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