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

Child development experts have noted teenagers are more susceptible to social comparison than adults, so products that reward popularity can be more harmful to their mental health.

— ABC News, ABC News, 19 Aug. 2026
Beneficial bacteria also provide colonization resistance, competing with harmful microbes for nutrients and attachment sites while producing substances that inhibit their growth.

— Encyclopedia Britannica, Encyclopedia Britannica, 19 Aug. 2026

Definition of harmful

Adjective

The desert’s location on the southern border has led to many migrants attempting to cross it by using dangerous backcountry routes, the experts said.

— Emma Tucker, CNN Money, 24 Aug. 2026
Rather, this is a dangerous, shape-shifting synthetic entity that ravaged their entire planet.

— Siddhant Adlakha, Vulture, 24 Aug. 2026

Definition of dangerous

Adjective

Then England attracted adverse attention for openly drinking in the Queensland resort of Noosa when 2-0 down in a one-sided Ashes series in Australia.

— Paul Newman, New York Times, 23 Aug. 2026
Women with high occupational heat exposure were roughly twice as likely to suffer a miscarriage or stillbirth as those working in cooler conditions, and faced elevated risks of adverse birth outcomes overall.

— Catarina Rolfsdotter-Jansson, Forbes.com, 22 Aug. 2026

Definition of adverse

Adjective

The greatest risk from the storms will be from damaging winds and heavy downpours.

— Rachael Jay, CBS News, 20 Aug. 2026
Although both helped mitigate the effects of the gas, urine offered some degree of chemical protection because its ammonia partially neutralized the chlorine, reducing the gas’s damaging and potentially lethal effects on the lungs.

— Encyclopedia Britannica, Encyclopedia Britannica, 19 Aug. 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 26 Aug. 2026.

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Synonyms of nocuous

adjective

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