exacerbate

verb

ex·​ac·​er·​bate ig-ˈza-sər-ˌbāt How to pronounce exacerbate (audio)
exacerbated; exacerbating
Synonyms of exacerbatenext

transitive verb

: to make (something bad or unpleasant) worse
a skin condition exacerbated by too much sun
The new law only exacerbates the unemployment problem.
They feared sending more weapons would exacerbate the conflict.
exacerbation noun
Increased air pollution can lead to the exacerbation of asthma symptoms.

Did you know?

The Latin adjective acer, meaning "sharp," forms the basis of a number of English words. Acerbic ("having a bitter temper or sour mood"), acrid ("having a sharp taste or odor"), and acrimony ("a harsh manner or disposition") are just the tip of the jagged iceberg. First appearing in English in the 17th century, exacerbate combines the Latin prefix ex- ("out of" or "outside") with acer offspring acerbus, meaning "harsh" or "bitter." Just as pouring salt in a wound worsens pain, things that exacerbate cause a situation to go from bad to worse. A pointed insult or cutting remark, for example, might exacerbate tensions between two bitter rivals. The legacy of acer isn't all negative, however. The Latin name for the genus of maple trees and shrubs is Acer, owing to maples’ characteristically pointy leaves.

Did you know?

Exacerbate vs. Exasperate

Exacerbate is frequently confused with exasperate, and with good reason. Not only do these words resemble one another in spelling and pronunciation, they also at one time held exceedingly similar meanings. Exasperate is today most commonly used as a synonym of annoy, but for several hundred years it also had the meanings “to make more grievous” and “to make harsh or harsher.” Exacerbate is now the more common choice of these two words when one seeks to indicate that something is becoming increasingly bitter, violent, or unpleasant. It comes in part from the Latin word acer, meaning “sharp,” whereas exasperate is from asper, the Latin word for “rough.”

Examples of exacerbate in a Sentence

The declining retirement security faced by growing numbers of Americans is being exacerbated by increasing longevity and quickly rising health care costs. Jeff Madrick, New York Review of Books, 20 Mar. 2008
… the sway that pack journalism holds on the Beltway press corps persists. The Crowd is never so influential as in the ever-lengthening season of presidential campaigns. The feverish obsessions of the blogosphere have only exacerbated the phenomenon: Now the herd just turns faster in pursuit of some ginned-up "controversy" or faux scandal. Editor & Publisher, April 2007
The proposed factory shutdown would only exacerbate our unemployment problems. His angry comments have exacerbated tensions in the negotiation process.
Recent Examples on the Web
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.
The uneven access across states can exacerbate disparities. Moriah Balingit, Fortune, 23 Apr. 2026 This will then overcrowd emergency rooms and exacerbate homelessness. Monica Montgomery Steppe, San Diego Union-Tribune, 23 Apr. 2026 Stress and exhaustion can make symptoms worse, according to ASHA and the Cleveland Clinic, and can be exacerbated by vocal stress, such as speaking over a crowd in a noisy place or over the phone. Mary Walrath-Holdridge, USA Today, 23 Apr. 2026 The trend has exacerbated China’s deflation problem and weighed on the economy as prices decline and consumption weakens. John Liu, CNN Money, 22 Apr. 2026 See All Example Sentences for exacerbate

Word History

Etymology

borrowed from Latin exacerbātus, past participle of exacerbāre "to irritate, exasperate, make worse," from ex- ex- entry 1 + acerbāre "to make bitter, make worse," verbal derivative of acerbus "acid, bitter, bitterly hostile, distressing" — more at acerb

First Known Use

1660, in the meaning defined above

Time Traveler
The first known use of exacerbate was in 1660

Browse Nearby Words

Podcast

Cite this Entry

“Exacerbate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/exacerbate. Accessed 24 Apr. 2026.

Medical Definition

exacerbate

transitive verb
ex·​ac·​er·​bate ig-ˈzas-ər-ˌbāt How to pronounce exacerbate (audio)
exacerbated; exacerbating
: to cause (a disease or its symptoms) to become more severe
her condition was exacerbated by lack of care
exacerbation noun

More from Merriam-Webster on exacerbate

Love words? Need even more definitions?

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

More from Merriam-Webster