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Synonyms

drowsy

American  
[drou-zee] / ˈdraʊ zi /

adjective

drowsier, drowsiest
  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

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.

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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.

Drowsy driving isn’t just the act of nodding off at the wheel.

From Slate • Nov. 26, 2025

Formally, the National Sleep Foundation developed and has produced Drowsy Driving Prevention Week® since 2007 and recently published a new drowsy driving position statement.

From Science Daily • Jun. 4, 2024

The new book for “Smash” will be co-written Tony-nominated Rick Elice, who penned “Jersey Boys,” and Tony-winner Bob Martin, who won for “The Drowsy Chaperone.”

From Seattle Times • Mar. 22, 2023

After appearing in multiple national tours, including of "Grease," she made her Broadway debut in 2007 in "The Drowsy Chaperone" at the age of 60.

From Salon • Jan. 31, 2023

I travel with Volpe and a group of students one night to see another high school perform a musical called The Drowsy Chaperone, a very good show with a really dumb title.

From "Drama High" by Michael Sokolove

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