What does groggy mean?
Groggy is an informal adjective describing a state of drowsiness, weakness, or mental slowness. Someone who is groggy may have just awakened, be recovering from illness or surgery, or be too tired to think clearly. The word can also suggest that a person is unsteady, confused, or not fully alert. In everyday use, it often conveys a mild and temporary condition rather than a serious medical emergency: “I’m still groggy after sleeping,” or “The medicine made me feel groggy.” Groggy is especially useful when the problem is not simply tiredness but a reduced ability to wake up, concentrate, or respond normally. It appears frequently in conversations about sleep, medication, injury, anaesthesia, and the lingering effects of a difficult night. Although it is related in origin to grog, modern groggy has little to do with drinking and is most often used in neutral descriptions of fatigue, recovery, and mental dullness.
adjectiveFeeling or appearing drowsy, weak, and only partly awake; sometimes also meaning mentally confused or unsteady.
- Drowsy, weak, or only partly awake.
- Mentally confused, unsteady, or not fully alert, especially after illness, fatigue, or a shock.
"I was still groggy after waking, so I made another pot of strong coffee."
"The medication left me feeling groggy for much of the afternoon."
"He was still groggy from the accident and struggled to focus on the conversation."
Groggy captures that unmistakable moment when your eyes are open, but your thoughts are still negotiating with the pillow.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of groggy
Groggy is an early nineteenth-century English word that was initially associated with being unsteady or intoxicated and was later extended to describe drowsiness and dullness. Its precise derivation is not entirely clear, although it is commonly connected with grog, the alcoholic drink that gave its name to several related English words.
Related word forms
How groggy is actually used
Informal and common in everyday speech. It is especially frequent in British and American English in descriptions of waking up, recovering from illness or surgery, and feeling mentally unfocused.
Easily confused with groggy
Groovy means fashionable, exciting, or enjoyable, whereas groggy means drowsy, weak, or only partly awake.