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

Your liver is responsible for breaking down toxins and filtering them out of the body, essentially detoxifying you from harmful substances and chemicals.

— Angelica Bottaro, Verywell Health, 22 July 2026
At our previous Yale CEO Caucus, over two-thirds of CEOs surveyed told us that Trump’s tariffs had been harmful to their own businesses, and 80% said that tariff costs had been passed on in part to consumers.

— Jeffrey Sonnenfeld, Fortune, 22 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 Athletic reported at the time that sources with knowledge of proceedings, speaking on the condition of anonymity to protect relationships, said these were particularly damaging to Southampton’s case.

— Jacob Tanswell, New York Times, 22 July 2026
Hurricanes are predicted to grow stronger and spin up faster, too, having a more damaging effect.

— Jacqui Palumbo, CNN Money, 21 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 24 Jul. 2026.

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Synonyms of nocuous

adjective

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