sleepiness
3 synonyms and 2 antonyms for sleepiness, grouped by meaning and by how common each one is.
Noun — The state of feeling ready to fall asleep.
Synonyms
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
Antonyms
How to use sleepiness
The word patterns that sound natural to a native speaker.
a wave of sleepiness
fight off sleepiness
daytime sleepiness
feelings of sleepiness
It is a plain, everyday word suitable for any setting, including medical contexts.
Etymology
Sleepiness is formed from the English word sleepy with the suffix -ness added to turn it into a noun.
Full origin of sleepiness →Frequently asked questions
What does sleepiness mean?
It means the feeling of being sleepy, or ready to fall asleep.
What causes sleepiness during the day?
Common causes include not getting enough sleep, eating a heavy meal, or side effects of certain medications.
Is sleepiness the same as tiredness?
They are closely related, but sleepiness specifically means feeling like you could fall asleep, while tiredness can also refer to general fatigue without wanting to sleep.
