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

When threatening phone calls begin and a dangerous fugitive surfaces in town, Jenny grows suspicious of everyone around her as the danger begins closing in.

— Glenn Garner, Deadline, 11 Oct. 2026
One of the reasons being an actor is both dangerous and a privilege is that your job is to think about all the different roads your life could take, and all the people that live inside you, and all your potential.

— Sarah Larson, New Yorker, 11 Oct. 2026

Definition of dangerous

Adjective

Early detection is also instrumental to addressing chronic absenteeism, classroom misconduct and student disconnectedness detrimental to any learning environment.

— Vanessa Andersen, Chicago Tribune, 8 Oct. 2026
Brown was suspended for conduct detrimental to the team in 1997 and then was cut.

— ABC News, ABC News, 7 Oct. 2026

Definition of detrimental

Adjective

Gastrointestinal problems, such as nausea, were the most common adverse events, generally experienced as doses were increased.

— Mike McRae October 09, New Atlas, 10 Oct. 2026
The team’s findings, published last week in Nature Communications, reveal that, when given such a drug, rodents suffer adverse reactions similar to the paranoia human cannabis users feel.

— Cody Cottier, Scientific American, 7 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 17 Oct. 2026.

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Synonyms of nocuous

adjective

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