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

Experts agree that allowing external services to access Apple’s and Google’s operating systems could be dangerous for security and user privacy.

— Lisa Eadicicco, CNN Money, 19 July 2026
Sources additionally say that officers have burnt out while working overtime month after month — all on top of functioning in an already tense and dangerous environment, likening the situation to a powder keg ready to blow.

— Anna Giaritelli, The Washington Examiner, 19 July 2026

Definition of dangerous

Adjective

Unfortunately, during the early to mid-twentieth century, negative perceptions of immigrant and ethnic laborers led many outsiders to view their neighborhoods as unsafe, unclean, and detrimental to the social fabric of American cities.

— Michelle Oliva-Espinosa, Kansas City Star, 18 July 2026
Pruning can stress them even further, creating a scenario that can be detrimental to your plants.

— Samantha Johnson, Martha Stewart, 16 July 2026

Definition of detrimental

Adjective

But this isn’t because of potential health risks or adverse effects in-flight—cabin crew simply dislike pouring it because of its excessive fizziness.

— Stacey Leasca, Travel + Leisure, 17 July 2026
The scientific debate Scientists do not always agree on what counts as an adverse effect of mindfulness.

— Ronald S. Green, The Conversation, 16 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 21 Jul. 2026.

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Synonyms of nocuous

adjective

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