Thesaurus
To save this word, you'll need to log in.
Keep scrolling for more
Keep scrolling for more
Comments on sleeper
What made you want to look up sleeper? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Original Meanings Quiz
- Which of the following is the earliest known sense of the word awe?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Share sleeper
Time Traveler for sleeper
The first known use of sleeper was in the 12th century
See more words from the same century