jet lag
noun
: a condition that is characterized by various psychological and physiological effects (such as fatigue and irritability), occurs following long flight through several time zones, and probably results from disruption of circadian rhythms in the human body
Temporary fatigue, drowsiness, and loss of concentration are typical symptoms of isolated bouts of jet lag …—
J. Netting
J. Netting
Examples of jet lag in a Sentence
I had bad jet lag after that last trip overseas.
Recent Examples on the Web
Wellness takes priority on every Four Seasons jet trip: All itineraries fly west to minimize jet lag (westward travel aligns better with the body’s circadian rhythm), and there are no overnight flights, to ensure guests enjoy a dreamy night’s sleep in their Four Seasons beds.
—Alexandra Kirkman, Fortune, 18 June 2025
For the modern executive, the demands of global business often mean constant travel, time zone shifts, and the inevitable fatigue of jet lag.
—Alex Levin, Forbes.com, 20 May 2025
Given the nature of his job, the designer can sustain his share of jet lag, having been in Singapore, London and New York in the past week or so.
—Rosemary Feitelberg, Footwear News, 7 May 2025
Overconsumption of alcohol, or conversely, not drinking enough water, can lead to discomfort and prolonged jet lag.
—Christopher Elliott, USA Today, 17 June 2025
See All Example Sentences for jet lag
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Alexandra Kirkman, Fortune, 18 June 2025
For the modern executive, the demands of global business often mean constant travel, time zone shifts, and the inevitable fatigue of jet lag.
—Alex Levin, Forbes.com, 20 May 2025
Given the nature of his job, the designer can sustain his share of jet lag, having been in Singapore, London and New York in the past week or so.
—Rosemary Feitelberg, Footwear News, 7 May 2025
Overconsumption of alcohol, or conversely, not drinking enough water, can lead to discomfort and prolonged jet lag.
—Christopher Elliott, USA Today, 17 June 2025
See All Example Sentences for jet lag
Cite this Entry
“Jet lag.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jet%20lag. Accessed 10 Jul. 2025.
Copy CitationMedical Definition
jet lag
noun
: a condition that is characterized by various psychological and physiological effects (as fatigue and irritability), occurs following long flight through several time zones, and probably results from disruption of circadian rhythms in the human body
called also jet fatigue
jet-lagged
adjective
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