Dictionary.com
Thesaurus.com
Synonyms

drowsy

American  
[drou-zee] / ˈdraʊ zi /

adjective

  • drowsier,
    comparative
  • drowsiest
    superlative
  1. half-asleep; sleepy.

    Synonyms:
    dozy, somnolent
  2. marked by or resulting from sleepiness.

  3. dull; sluggish.

    Synonyms:
    listless, lethargic
  4. inducing lethargy or sleepiness.

    drowsy spring weather.


drowsy British  
/ ˈdraʊzɪ /

adjective

  1. heavy with sleepiness; sleepy

  2. inducing sleep; soporific

  3. sluggish or lethargic; dull

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Adjectives

Etymology

Origin of drowsy

First recorded in 1520–30; drowse + -y 1

Explanation

Drowsy means sleepy and having low energy. When you’re sitting in the warm sunlight after a big lunch, and you’re so drowsy you can’t keep your eyes open, it’s not the right time to try organizing your desk. Ah drowsy, a word that describes slow-moving lions and charming little towns equally well. It has a pleasant association to it, a nice cozy sleepiness, like the sort of feeling you have when you can’t exactly figure out why your eyes keep closing, they just do. Wine makes some people drowsy and a boring documentary will definitely do it to you. Drowsy comes from an Old English word meaning "falling," and has evolved into falling asleep.

Keep Reading on Vocabulary.com

Vocabulary lists containing drowsy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

A team that had never won so much as nine straight games during the drowsy regular season suddenly rattled off 13 straight victories in the playoffs.

From The Wall Street Journal Jun. 14, 2026

For example, Samsara’s cameras used in delivery trucks can help determine when a driver is distracted or drowsy, and deliver real-time alerts.

From Barron's Jun. 11, 2026

When you eat too much, it can make you drowsy and cause severe stomach upsets, she says.

From BBC Mar. 19, 2026

The concerning finding here: Drivers didn’t realize that they were becoming drowsy again, even though physiological changes demonstrated that they were.

From Slate Nov. 26, 2025

Running with a drowsy child of Hades was more like doing a three-legged race with a life-size rag doll.

From "The Last Olympian" by Rick Riordan

But because Iridium was only a near-failure and not a total one, it’s also a peculiar — and drowsier — turnaround story.

From Los Angeles Times Jun. 17, 2016

The volunteers still felt drowsier in the afternoon.

From BBC Oct. 29, 2014

After that, the show became a kind of dinner-theater version of itself -- flaccid, repetitious, drowsier than the Texas economy -- and receded discreetly into the haze of Has-Been.

From Time Magazine Archive

Philip grew drowsier and drowsier, till Viola stole in and led him away, "walking asleep."

From The Wishing-Ring Man by Margaret Widdemer

She held out to him an arm drowsier than her thought.

From The Creators A Comedy by May Sinclair

“Ma Belle, My Beauty” comes pre-drenched in the languid pleasures of late summer; for anyone looking for a respite from and a celebration of the season’s drowsiest dog days, it works a trick.

From Washington Post Aug. 24, 2021

Up India's Hooghly River one day last February sailed a weird vessel which made even the drowsiest citizens rub their eyes.

From Time Magazine Archive

Several days afterward there was a tap at the study door in the drowsiest part of the afternoon.

From Child and Country A Book of the Younger Generation by Will Levington Comfort

It was the drowsiest of murmurs, but few things have been so welcome to me in all my life.

From The Firefly of France by Marion Polk Angellotti

It stands mid-way up a well-wooded hill, about two and a half miles from a dreamy, drowsy old village, in one of the dreamiest, drowsiest nooks of bonnie, tree-clad Berkshire.

From O'er Many Lands, on Many Seas by Gordon Stables

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training