impair

Synonym Chooser

How is the word impair distinct from other similar verbs?

Some common synonyms of impair are damage, harm, hurt, injure, and mar. While all these words mean "to affect injuriously," impair suggests a making less complete or efficient by deterioration or diminution.

years of smoking had impaired his health

In what contexts can damage take the place of impair?

The meanings of damage and impair largely overlap; however, damage suggests injury that lowers value or impairs usefulness.

a table damaged in shipping

When might harm be a better fit than impair?

While the synonyms harm and impair are close in meaning, harm often stresses the inflicting of pain, suffering, or loss.

careful not to harm the animals

When could hurt be used to replace impair?

The words hurt and impair are synonyms, but do differ in nuance. Specifically, hurt implies inflicting a wound to the body or to the feelings.

hurt by their callous remarks

When is injure a more appropriate choice than impair?

Although the words injure and impair have much in common, injure implies the inflicting of anything detrimental to one's looks, comfort, health, or success.

badly injured in an accident

When would mar be a good substitute for impair?

While in some cases nearly identical to impair, mar applies to injury that spoils perfection (as of a surface) or causes disfigurement.

the text is marred by many typos

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 impair Scientists in my lab were curious whether one explanation for the muscle loss in cancer patients could be that the cancer impairs the blood vessels that are necessary to supply nutrients and oxygen to muscles. Jalees Rehman, The Conversation, 11 July 2025 Without federal support, Ryan said, the work his division of the health department has been doing to try to slow the increase in new HIV cases would be impaired. Suzanne King, Kansas City Star, 8 July 2025 Never use fireworks while impaired by alcohol or drugs. Kevin Quinitchett, USA Today, 4 July 2025 Of the accidents involving impairment: 37.2% of drivers were speeding 33.5% of drivers were under the influence of alcohol 7.1% of drivers were distracted 22.1% of drivers were otherwise impaired Of the fatalities analyzed in the study, 61.1% of motorcycle drivers were wearing a helmet. Alexis Simmerman, Austin American Statesman, 2 July 2025 See All Example Sentences for impair
Recent Examples of Synonyms for impair
Verb
  • Shooting comes 3 years after another incident The July 25 shooting comes less than three years after another fatal attack at a University of New Mexico housing building left one student dead and three campus visitors injured.
    Karissa Waddick, USA Today, 25 July 2025
  • Newcastle insist Isak is injured and that a long-haul flight would not aid his recovery, but the rumour mill will only go into overdrive.
    Chris Waugh, New York Times, 24 July 2025
Verb
  • Anything that damages the trust between the vendor, Microsoft, and the user is as much a threat as the hackers themselves, in my never humble opinion.
    Davey Winder, Forbes.com, 14 July 2025
  • Driving through deep water can also damage a vehicle's mechanical and electrical systems.
    NC Weather Bot, Charlotte Observer, 14 July 2025
Verb
  • Sure, the game was marred by former commissioner Bud Selig declaring the 2002 edition a tie.
    Dan Freedman, Forbes.com, 15 July 2025
  • The production Chosen had early in his career for the New York Jets and then with a 1,000-yard season for the Carolina Panthers in 2020 was marred by two arrests within a year between 2018 and 2019.
    David Furones, Sun Sentinel, 14 July 2025
Verb
  • This weakens their ability to educate, create, and grow.
    Miguel Cardona, Time, 21 July 2025
  • This could help verify recent findings from the Dark Energy Spectroscopic Instrument (DESI) that suggest this strange force is actually weakening over time.
    Robert Lea, Space.com, 20 July 2025
Verb
  • About six weeks ago, hackers crippled the computer systems of the TV and mobile phone provider Dish Network.
    Shira Ovide, Washington Post, 4 Apr. 2023
  • Oakland Mills Coach: Chris Brewington Last season: Class 2A state champion Outlook: Losing the talent Oakland Mills did from last year’s outdoor season would cripple most programs, but the Scorpions have reloaded.
    Anthony Maluso, Baltimore Sun, 22 Mar. 2023
Verb
  • This growing skepticism means that obvious AI usage could hurt your chances, even if the content quality is high.
    Caroline Castrillon, Forbes.com, 20 July 2025
  • Angela, visibly hurt, calls her out—and for once, everyone agrees.
    Shelby Stewart, Essence, 20 July 2025
Verb
  • Durbin’s letter signals a new phase in congressional oversight of the investigation, shifting focus from demands for disclosure to questions about whether the review process itself has been compromised.
    Nik Popli, Time, 18 July 2025
  • By connecting data from disparate systems through a federated graph, enterprises can get a holistic, contextual view of their data landscape without compromising agility, empowering business users with richer insights.
    Rajiv Shesh, Forbes.com, 18 July 2025
Verb
  • But the context in which the show is premiering makes this a surreal project, where legal rights and principles we were once told were sacrosanct are being eroded.
    Nina Metz, Chicago Tribune, 23 July 2025
  • Inflation is an inevitable economic reality that erodes your purchasing power over time.
    Prasanna Kumar, Forbes.com, 23 July 2025

Browse Nearby Words

Cite this Entry

“Impair.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impair. Accessed 29 Jul. 2025.

More from Merriam-Webster on impair

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!