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 However, the proposal does recommend that the maximum difference between atomic and astronomical time should not exceed 3,600 seconds or one hour. — Katie Hunt, CNN Money, 13 Oct. 2026 Those elementary particles, first detected experimentally in 1956, travel through space, interacting only rarely with electrons and atomic nuclei. — Daniella McCahey, The Conversation, 12 Oct. 2026 Traditional atomic projects often face extensive delays because safety reviews generally encompass both the reactor and its major steam-generating systems. — Aman Tripathi, Interesting Engineering, 10 Oct. 2026 See All Example Sentences for atomic

Recent Examples of Synonyms for atomic

Adjective

Commonly associated with environmental risk factors such as smoking or exposure to hazards like radon, the rare but aggressively fast-growing condition gets its name from the unusually tiny appearance of its cells.

— New Atlas, New Atlas, 15 Oct. 2026
These tiny architects of the deep sea actively regulate microbial populations.

— Mrigakshi Dixit, Interesting Engineering, 14 Oct. 2026

Definition of tiny

Adjective

These informative passages function similarly to footnotes, but without the disruption of having to read minuscule print at the bottom of the page.

— Heller McAlpin, Christian Science Monitor, 16 Oct. 2026
Study after study, by public officials and think tanks, has shown that voting by noncitizens and other ineligible voters happens only at minuscule, statistically insignificant levels.

— Christopher Miller, The Conversation, 15 Oct. 2026

Definition of minuscule

Adjective

Unlike conventional nuclear reactors, City Labs develops microscopic power sources that generate electricity and heat through the natural decay of tritium.

— Christopher McFadden, Interesting Engineering, 16 Oct. 2026
Root’s climate-tech company, Matter, created Regen, a universal, reusable, and self-cleaning filter for laundry machines that captures up to 97% of microscopic clothing fibers that would otherwise end up in wastewater systems.

— Matt Alderton, Time, 15 Oct. 2026

Definition of microscopic

Adjective

Tippett and fellow animator Jon Berg had originally created the miniature figures under intense deadline pressure.

— Davide Abbatescianni, Variety, 16 Oct. 2026
Drawing in part on Mughal miniature painting, it was also inspired by the Huntington’s collection of 18th-century Beauvais tapestries.

— Anne Doran, ARTnews.com, 16 Oct. 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 19 Oct. 2026.

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Synonyms of atomic

adjective

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