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Definitions

sleeper

[slee-per] / ˈsli pər /


NOUN
late bloomer
Synonyms
Antonyms






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.

"This suggests that dreaming may reshape how brain activity is interpreted by the sleeper: the more immersive the dream, the deeper the sleep feels."

From Science Daily • Mar. 26, 2026

Unless Snead and his scouts have identified a sleeper pick, this year’s draft class is not brimming with top quarterback prospects other than Fernando Mendoza.

From Los Angeles Times • Mar. 1, 2026

“This was a sleeper issue that people did not pay much attention to before the pandemic. Then things got extremely intense,” Saver said.

From Salon • Jan. 9, 2026

He previously played a KGB sleeper agent in The Americans, for which he won an Emmy Award for his acting in 2018.

From BBC • Jan. 2, 2026

Blanca is not a light sleeper, so I got up thinking I didn’t have to be very quiet.

From "Bodega Dreams" by Ernesto Quinonez