Synonym Chooser

How does the adjective lethal differ from other similar words?

Some common synonyms of lethal are deadly, fatal, and mortal. While all these words mean "causing or capable of causing death," lethal applies to something that is bound to cause death or exists for the destruction of life.

lethal gas

When is deadly a more appropriate choice than lethal?

The words deadly and lethal can be used in similar contexts, but deadly applies to an established or very likely cause of death.

a deadly disease

When could fatal be used to replace lethal?

Although the words fatal and lethal have much in common, fatal stresses the inevitability of what has in fact resulted in death or destruction.

fatal consequences

When might mortal be a better fit than lethal?

While in some cases nearly identical to lethal, mortal implies that death has occurred or is inevitable.

a mortal wound

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 lethal Maduro’s own explanation for this decline portrays the government as handily controlling criminals by means of incredibly lethal police raids carried out between 2015 and 2019. Rebecca Hanson, The Conversation, 24 Feb. 2025 Ford, 64, is set to be executed by lethal injection after being on death row for more than two decades for the 1997 murders of Gregory and Kimberly Malnory, who were in their mid-20s. Fernando Cervantes Jr., USA TODAY, 14 Feb. 2025 Richard Tabler shared his final words before he was executed by lethal injection in Texas on Thursday. Josh Hammer, Newsweek, 14 Feb. 2025 As part of this, Europe must provide the overwhelming share of future lethal and nonlethal aid to Ukraine. Not unreasonable, although, in fact, Europe has provided almost as much military aid to Ukraine as has the United States, and more humanitarian aid. Eliot A. Cohen, The Atlantic, 13 Feb. 2025 See All Example Sentences for lethal
Recent Examples of Synonyms for lethal
Adjective
  • The deadly blaze erupted Saturday just before 2 p.m. near Fenwick Street, officials told WFSB-TV.
    Theresa Braine, New York Daily News, 24 Feb. 2025
  • Armed gangs now control approximately 80 percent of the capital, Port-au-Prince, carrying out kidnappings, extortion, and deadly clashes with security forces.
    Mark Joseph, Newsweek, 24 Feb. 2025
Adjective
  • Gordon Cordeiro had his freedom secured on Friday after a judge ordered him released in light of new DNA evidence that led to the overturning of his conviction in the 1994 fatal shooting of Timothy Blaisdell on the island of Maui.
    Landon Mion, Fox News, 23 Feb. 2025
  • Even a pencil tip amount of the synthetic opioid pain reliever drug can be fatal, according to the U.S. Drug Enforcement Administration.
    Joe Marusak, Charlotte Observer, 22 Feb. 2025
Adjective
  • Shauna, Van, and Akilah break free from the rest of the group and end up in a tunnel permeated by some sort of poisonous gas.
    Esther Zuckerman, New York Times, 21 Feb. 2025
  • But perhaps more alarmingly, Seneca Meadows is currently sending poisonous, PFAS-laden runoff into the Hudson and your drinking water supply.
    Yvonne Taylor, New York Daily News, 21 Feb. 2025

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Cite this Entry

“Lethal.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/lethal. Accessed 3 Mar. 2025.

More from Merriam-Webster on lethal

Last Updated: - Updated example sentences
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