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

The as-yet-untitled series will follow the story of multiple families and campaigners including Ellen Roome, who believes that the tragic death of her beloved 14-year-old son Julian ‘Jools’ Sweeney could have been linked to harmful social media.

— Max Goldbart, Deadline, 15 July 2026
And planting near any street could expose trees to harmful salt spray when roads are treated in the winter.

— Viveka Neveln, Better Homes & Gardens, 14 July 2026

Definition of harmful

Adjective

Teri handled higher-value finds and saw that potentially dangerous items – like firearms and knives – got to the local sheriff’s office.

— Alisha Ebrahimji, CNN Money, 6 July 2026
Looking back through the sequence, Brazil have good numbers back and there is little need for anyone to overcommit — but a lazy tackle from behind leads to a free kick in a dangerous area.

— Mark Carey, New York Times, 6 July 2026

Definition of dangerous

Adjective

Dauvin warns that piling obligations onto streamers could be detrimental to the French film and television landscape.

— Elsa Keslassy, Variety, 6 July 2026
Salted pasta water can be detrimental to soil and plant health, and even unsalted water can promote the growth of unwanted fungi.

— Lauren Landers, Better Homes & Gardens, 4 July 2026

Definition of detrimental

Adjective

These conditions can increase your vulnerability to adverse effects from poor air quality.

— Southern California Weather Report, Oc Register, 4 July 2026
Valentine also testified that the FDA encourages infant formula companies to send in all adverse event reports and that nothing prevented Mead Johnson from doing so.

— David Hilzenrath, USA Today, 2 July 2026

Definition of adverse

Adjective

The inmate claimed that he was told Kelly and his attorneys were planning to expose damaging information, as the filing alleged that officials violated attorney-client privilege by intercepting personal correspondence.

— Steven J. Horowitz, Variety, 15 July 2026
Ultimately, Moraff and Fan deemed the issue politically damaging and moved on from Williams to Platner — who was already the subject of a 2024 Facebook post warning women not to get involved with him.

— Nicholas Wu, semafor.com, 15 July 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 18 Jul. 2026.

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Synonyms of nocuous

adjective

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