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

When atmospheric weather conditions in May drove dangerous pollution levels in Texas, environmental officials urged residents to limit driving and in particular to avoid drive-through lines.

— Los Angeles Times, Los Angeles Times, 26 July 2026
An unchecked ego further erodes psychological safety, as dismissing feedback signals that team contributions are unwelcome, creating dangerous blind spots.

— Dr. Samantha Madhosingh, Forbes.com, 26 July 2026

Definition of dangerous

Adjective

Prices reached record highs over the past two years, triggered by adverse weather conditions and poor cocoa harvests that pushed chocolate costs higher and dampened consumer sentiment.

— Lim Hui Jie, CNBC, 27 July 2026
Potential adverse effects identified by the FDA include heart toxicity, infections, pancreatitis, increased or decreased insulin sensitivity, serious immunoresponses, melanoma and death.

— Sara Moniuszko, USA Today, 24 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 30 Jul. 2026.

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Synonyms of nocuous

adjective

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