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

Local government and outside groups have long strived to ban the popular tourist attraction that critics argue is harmful to horses’ well-being.

— Claire Carter, The Washington Examiner, 14 Oct. 2026
Waters are becoming cloudier overall, while harmful algal blooms — measured through chlorophyll a levels — are trending in the wrong direction, the report found.

— Adam Thompson, CBS News, 14 Oct. 2026

Definition of harmful

Adjective

Swimmers should remain out of the water due to dangerous surf conditions.

— NC Weather Bot, Charlotte Observer, 18 Oct. 2026
Fresh to strong winds will produce dangerous boating conditions, high surf, life-threatening rip currents, and moderate beach erosion through at least the first half of the coming week, forecasters said.

— Felix Rodriguez, The Orlando Sentinel, 18 Oct. 2026

Definition of dangerous

Adjective

Hyperscalers opine on how detrimental electrical outages are to their business.

— Drew Robb, Time, 15 Oct. 2026
Kennon, who is currently being held in Falkenburg Road Jail, was released from the program due to conduct detrimental to the team, the school said.

— Ryan Morik OutKick, FOXNews.com, 14 Oct. 2026

Definition of detrimental

Adjective

In fact, the National Trust for Historic Preservation says the nationwide average for a review is 16 days, and that 98% of those reviews conclude that the project will have no adverse effect on nearby historic resources.

— Rachel Treisman, NPR, 15 Oct. 2026
High prices also a factor But despite positive weather news and whispers of an abundance of crab, other factors could affect prices in adverse ways for consumers.

— Miami Herald, Miami Herald, 15 Oct. 2026

Definition of adverse

Adjective

Strong overnight thunderstorms brought heavy rain and damaging winds to the Kansas City metro, prompting a tornado warning for Clay County and leaving thousands of people without power Wednesday morning.

— Kansas City Star, Kansas City Star, 14 Oct. 2026
In a culture marked by high-power distance, that’s a particularly damaging signal.

— Ryoji Sekido, Fortune, 13 Oct. 2026

Definition of damaging

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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 20 Oct. 2026.

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Synonyms of nocuous

adjective

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