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sleeper Synonyms

Another word for sleeper

Looking for synonyms for sleeper? Sourced from our comprehensive thesaurus, here is a list of similar words and another word for sleeper, organized by relevance and context.
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• noun (Context 1)

A person or animal that sleeps, often described in terms of their sleeping habits or patterns.

Usage Example

"As a remarkably heavy slumberer, he completely slept through the loud thunderstorm that rattled the windows."

Strongest
slumberer

• noun (Context 2)

A movie, book, or other product that achieves sudden, unexpected success after initially drawing little attention or anticipation.

Usage Example

"The low-budget independent film became a massive summer breakout, ultimately grossing millions at the box office through word of mouth."

Strong
breakout
hit
Weak
sensation

• noun (Context 3)

An undercover espionage agent who lives an ordinary life and remains inactive in a target country or organization until given orders to act.

Usage Example

"The intelligence agency spent years hunting for the mole who had quietly infiltrated the government department."

Strongest
mole
Strong
spy
infiltrator
agent

Opposites of sleeper

Looking for antonyms? The opposite of sleeper varies depending on the context. Here are a few common opposites:

flop
dud
failure
See all opposites of sleeper

Cite this Entry


Wordmom. (2026). Synonyms for Sleeper. In Wordmom Thesaurus. Retrieved Oct 13, 2026, from https://wordmom.com/synonyms/sleeper
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