Synonym Chooser

How is the word deleterious different from other adjectives like it?

Some common synonyms of deleterious are baneful, detrimental, noxious, and pernicious. While all these words mean "exceedingly harmful," deleterious applies to what has an often unsuspected harmful effect.

a diet found to have deleterious effects

When is baneful a more appropriate choice than deleterious?

The synonyms baneful and deleterious are sometimes interchangeable, but baneful implies injury through poisoning or destroying.

the baneful notion that discipline destroys creativity

When would detrimental be a good substitute for deleterious?

The words detrimental and deleterious are synonyms, but do differ in nuance. Specifically, detrimental implies obvious harmfulness to something specified.

the detrimental effects of excessive drinking

When can noxious be used instead of deleterious?

The meanings of noxious and deleterious largely overlap; however, noxious applies to what is both offensive and injurious to the health of a body or mind.

noxious chemical fumes

Where would pernicious be a reasonable alternative to deleterious?

The words pernicious and deleterious can be used in similar contexts, but pernicious implies irreparable harm done through evil or insidious corrupting or undermining.

the claim that pornography has a pernicious effect on society

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of deleterious The strength of Ukraine's defense and the deleterious impact of Western sanctions on its economy have forced Russia to seek support in its war from its partners, including China, Iran and North Korea. Arick Wierson, MSNBC Newsweek, 16 Apr. 2025 The decline of the bundle has had a deleterious downstream impact on broadcast TV viewing, as only 4% of U.S. homes receive their TV signals exclusively via an antenna/over-the-air setup. Anthony Crupi, Sportico.com, 1 Apr. 2025 The actor has gone on to star in series like Fellow Travelers, a historical series set in the world of politics in the 1950s, which explores the deleterious psychic effect that being forced to live in the closet can have on LGBTQ people. Ryan Coleman, EW.com, 9 Apr. 2025 The government also claimed at various points that trans service members would have a deleterious effect on unit cohesion, but provided no evidence and did not respond to contradicting statements entered into the record by former military officials. Samantha Riedel, Them, 20 Mar. 2025 See All Example Sentences for deleterious
Recent Examples of Synonyms for deleterious
Adjective
  • Along the way, it is divulged that Saw has not been protecting himself with a gas mask from the harmful rhydonium fumes.
    Dalton Ross, EW.com, 2 May 2025
  • These are among the many casualties of the Trump administration's decision to level a research agency that has devoted much of its energy over the past five decades to reducing people's exposure to harmful chemicals and other dangerous conditions in the workplace.
    Will Stone, NPR, 2 May 2025
Adjective
  • However, losing him for OTAs, minicamp, training camp, and more could be detrimental to establishing his chemistry with the offense.
    James Brizuela, MSNBC Newsweek, 8 May 2025
  • Pradeep Kumar Saxena, India’s former Indus Water Commissioner, told the Press Trust of India news agency in April that the country can stop sharing data with Pakistan after the pact’s suspension, which could be detrimental during monsoon season.
    Chad de Guzman, Time, 7 May 2025
Adjective
  • Mowing too little or too much can have adverse consequences for the health of the lawn and can also encourage unwanted plants to grow.
    Lauren David, Southern Living, 11 May 2025
  • Additionally, the stock is perpetually vulnerable to adverse effects from unexpected increases in commodity costs or regulatory scrutiny concerning health claims associated with functional beverages.
    Trefis Team, Forbes.com, 9 May 2025
Adjective
  • States in the Mid-Mississippi, Ohio and Tennessee valleys, stretching all the way into parts of Pennsylvania and western New York, could see thunderstorms, damaging winds, hail and a possible isolated tornado, the weather service said.
    Jeanine Santucci, USA Today, 2 May 2025
  • The trade put an end to a damaging few weeks for the team-player relationship between the Heat and Butler.
    Anthony Chiang, Miami Herald, 30 Apr. 2025
Adjective
  • Maddison is responsible for dropping deep and pinging passes into dangerous areas, while Kulusevski and Bergvall are excellent ball-carriers.
    Jay Harris, New York Times, 12 May 2025
  • In the movie, Cruise’s Ethan Hunt must face his most dangerous enemy yet in the form of an AI known as the Entity.
    Zac Ntim, Deadline, 11 May 2025

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Cite this Entry

“Deleterious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/deleterious. Accessed 18 May. 2025.

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