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Definitions

sleepy

[slee-pee] / ˈsli pi /
ADJECTIVE
tired, dull
Synonyms
STRONGEST
drowsy lethargic listless quiet sluggish
WEAK
asleep blah comatose dopey dozy draggy heavy hypnotic inactive out out of it sleeping sleepyhead slow slumberous slumbersome snoozy somnolent soporific torpid yawning
Antonyms
STRONGEST
active alert energetic lively
WEAK
animated awake unsleepy

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.

They were less sleepy and could remain awake longer during simulated work hours.

From Science Daily • Apr. 1, 2026

Scrapping a show because he's sleepy is a new excuse, but it's not the strangest in rock history.

From BBC • Mar. 13, 2026

But some who have spent time with him in recent months have also found him adrift and isolated, with Meghan chasing new pursuits as he passes the time in his sleepy new hometown.

From The Wall Street Journal • Mar. 11, 2026

Many are watching results in the single constituency of Jhapa-5, a usually sleepy eastern district, where two key prime ministerial hopefuls went head-to-head.

From Barron's • Mar. 6, 2026

Later, when I got sleepy, there would be a mystery novel, a cup of tea if I felt like it.

From "The Secret History" by Donna Tartt