NOCUOUS Synonyms: 90 Similar and Opposite Words

nocuous

adjective

ˈnä-kyə-wəs

Definition of nocuous

as in harmful

causing or capable of causing harm hand washing is one of the easiest ways to help prevent the spread of nocuous germs

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Recent Examples of Synonyms for nocuous

Adjective

Neon plans a 2027 theatrical release under the Creative Commons license for the open-source horror film based on a fictional secretive organization that keeps supernatural items and other harmful entities away from the public.

— Etan Vlessing, HollywoodReporter, 30 Sep. 2026
Executives from six major AI companies signed a one-page document pledging to monitor their models and prevent harmful uses such as hacking.

— Brittney Melton, NPR, 30 Sep. 2026

Definition of harmful

Adjective

Wickline came on as an increasingly flustered Anthropic CEO, Dario Amodei, who’s explaining why AI is dangerous without taking any responsibility for that.

— Rima Parikh, Vulture, 27 Sep. 2026
The slow-moving storm, which killed a New York City housing authority worker when a tree fell Saturday, was expected to linger through Sunday with heavy rain, strong winds and dangerous surf all the way to New England.

— Leah Willingham, Los Angeles Times, 27 Sep. 2026

Definition of dangerous

Adjective

Republicans are starting to realize that many of their president’s actions are detrimental to their extended political livelihoods.

— Laura Washington, Chicago Tribune, 23 Sep. 2026
Garofalo and Cosco were among a scant few women who have chosen – or been able – to escape their crime families, albeit with inarguably detrimental results.

— Barbie Latza Nadeau, CNN Money, 21 Sep. 2026

Definition of detrimental

Adjective

Of those, several found modest associations linking the mother’s use of her phone with adverse measures of fetal growth.

— New Atlas, New Atlas, 24 Sep. 2026
Mac Haddow, with the American Kratom Association, said the FDA and states that have banned kratom are conflating the natural product with synthetic and chemically manipulated ones, which are associated with adverse effects and even deaths.

— ABC News, ABC News, 24 Sep. 2026

Definition of adverse

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nocturnal

nocuous

nod

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“Nocuous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/nocuous. Accessed 2 Oct. 2026.

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Synonyms of nocuous

adjective

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