debilitate

verb

de·​bil·​i·​tate di-ˈbi-lə-ˌtāt How to pronounce debilitate (audio)
dē-
debilitated; debilitating
Synonyms of debilitate

transitive verb

: to impair the strength of : enfeeble
sailors debilitated by scurvy
an economy debilitated by years of civil war
debilitation noun

Did you know?

Debilitate, enfeeble, undermine, and sap all share the general sense "to weaken." But while debilitate holds the distinction among these words of coming from the Latin word for "weak"—debilis—it packs a potent punch. Often used of disease or something that strikes like a disease or illness, debilitate might suggest a temporary impairment—but a pervasive one at that. Enfeeble, a very close synonym of debilitate, connotes a pitiable, but often reversible, condition of weakness and helplessness. Undermine and sap suggest a weakening by something working surreptitiously and insidiously.

Choose the Right Synonym for debilitate

weaken, enfeeble, debilitate, undermine, sap, disable mean to lose or cause to lose strength or vigor.

weaken may imply loss of physical strength, health, soundness, or stability or of quality, intensity, or effective power.

a disease that weakens the body's defenses

enfeeble implies a condition of marked weakness and helplessness.

enfeebled by starvation

debilitate suggests a less marked or more temporary impairment of strength or vitality.

the debilitating effects of surgery

undermine and sap suggest a weakening by something working surreptitiously and insidiously.

a poor diet undermines your health
drugs had sapped his ability to think

disable suggests bringing about impairment or limitation in a physical or mental ability.

disabled by an injury sustained at work

Examples of debilitate in a Sentence

The virus debilitates the body's immune system. the heart surgery debilitated the college athlete beyond his worst fears
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.
They also have been angered by Kennedy’s attempts to link vaccines to autism, going against decades of research that show no such link, and his framing of autism as a debilitating disease. Annie Ma, Los Angeles Times, 2 July 2026 They've also been angered by Kennedy's attempts to link vaccines to autism, going against decades of research that show no such link, and his framing of autism as a debilitating disease. ABC News, 1 July 2026 Fati, once a prodigious talent who broke numerous records and inherited Lionel Messi's number 10 shirt, saw his promising career at the club severely impacted by a series of debilitating knee injuries. Tom Sanderson, Forbes.com, 30 June 2026 Would society trend toward debilitating mass unemployment or the joyful end of work? Annie Lowrey, The Atlantic, 29 June 2026 See All Example Sentences for debilitate

Word History

Etymology

Latin debilitatus, past participle of debilitare to weaken, from debilis weak

First Known Use

1533, in the meaning defined above

Time Traveler
The first known use of debilitate was in 1533

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Cite this Entry

“Debilitate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/debilitate. Accessed 5 Jul. 2026.

Kids Definition

debilitate

verb
de·​bil·​i·​tate di-ˈbil-ə-ˌtāt How to pronounce debilitate (audio)
debilitated; debilitating
: to reduce the strength of : weaken
debilitation noun

Medical Definition

debilitate

transitive verb
de·​bil·​i·​tate di-ˈbil-ə-ˌtāt How to pronounce debilitate (audio)
debilitated; debilitating
: to impair the strength of
a body debilitated by disease
debilitation noun

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