Definitions

half asleep

ADJECTIVE

drowsy

Synonyms

STRONGEST

dazed lethargic

WEAK

comatose dopy dozing dozy dreamy drugged heavy indolent lackadaisical languid lazy lulling napping nodding out of it restful sluggish slumberous snoozy somnolent soothing soporific tired torpid

Antonyms

WEAK

alert awake energized lively

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.

“He’s half asleep and he lacks clarity and definition,” Hiddleston says.

From Los Angeles Times • Jan. 11, 2026

ORLANDO—I was half asleep when my phone pinged with an alert from Delta Air Lines late Sunday.

From The Wall Street Journal • Nov. 12, 2025

He said he had been "half asleep" Thursday when his phone buzzed with a call from Washington.

From Barron's • Nov. 7, 2025

"She was more excited for me than I was to be fair because I was half asleep," he added.

From BBC • Dec. 29, 2023

They’re half asleep and don’t move right away.

From "Lucky Broken Girl" by Ruth Behar