What does burnout mean?
Burnout is a noun denoting a state of profound physical, mental, and emotional exhaustion produced by sustained stress, most commonly associated with demanding work environments. A person suffering from burnout typically feels drained, detached, and unable to function effectively — a condition the World Health Organization has characterized as an occupational phenomenon rather than a medical illness. The term originated in the 1970s, when psychologist Herbert Freudenberger borrowed language from rocketry, where "burnout" described a motor's failure once its fuel was exhausted. That metaphor remains vivid: like a spent engine, the burned-out individual has run dry. Beyond the workplace sense, burnout retains a technical meaning in aerospace engineering, referring to the point at which a rocket or thruster exhausts its propellant. The word is standard in both British and American English, appears frequently in discussions of workplace wellbeing, and pairs naturally with verbs such as suffer, avoid, and recover.
Exhaustion of physical or emotional strength resulting from prolonged stress or frustration, especially in the workplace.
"Her doctor attributed her insomnia and irritability to burnout."
Often used attributively in phrases such as "job burnout" or "caregiver burnout."
The cessation of operation of a rocket engine, jet, or other device, either deliberately upon exhausting its fuel supply or accidentally through overheating or failure.
"The rocket reached orbital insertion shortly after second-stage burnout."
The plural is used chiefly for multiple instances or cases of exhaustion (e.g., among staff), or for repeated instances of engine cutoff in technical contexts.
"The clinic saw several staff burnouts last year before it overhauled its scheduling practices."
Burnout wasn't named by doctors but by 1970s researchers borrowing a term for rockets that literally run out of fuel — and it's now officially recognized by the World Health Organization as an occupational phenomenon.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of burnout
The noun "burnout" derives straightforwardly from the verb phrase "to burn out," combining the verb "burn" (from Old English "bærnan"/"biernan") with the particle "out." It first appeared in technical contexts in the late nineteenth century, describing the failure of electrical components such as fuses or coils through overheating. The term gained wide currency in the early 1970s when psychologist Herbert Freudenberger applied it to workers depleted by chronic occupational stress, drawing on the rocketry sense of a motor running out of propellant. Related forms include the verb phrase "burn out" and the adjective "burned-out" (or "burnt-out" in British usage).
How burnout is actually used
In everyday use, "burnout" refers almost exclusively to occupational or caregiving exhaustion. In technical aerospace contexts it retains its older meaning of fuel depletion in engines or motors. The word carries no strong regional variation between British and American English.
Easily confused with burnout
"Burnout" is a noun naming the state of exhaustion, while "burn out" is the verb phrase describing the act of becoming exhausted or ceasing to function.