Synonyms of sleeper

1. sleeper, slumberer, rester: usage: a rester who is sleeping
2. sleeper, spy, undercover agent, saboteur, wrecker, diversionist, terrorist: usage: a spy or saboteur or terrorist planted in an enemy country who lives there as a law-abiding citizen until activated by a prearranged signal
3. sleeper, achiever, winner, success, succeeder: usage: an unexpected achiever of success; "the winner was a true sleeper--no one expected him to get it"
4. tie, railroad tie, crosstie, sleeper, brace, bracing: usage: one of the cross braces that support the rails on a railway track; "the British call a railroad tie a sleeper"
5. sleeping car, sleeper, wagon-lit, passenger car, coach, carriage: usage: a passenger car that has berths for sleeping
6. sleeper, pajama, pyjama, pj's, jammies: usage: pajamas with feet; worn by children
7. sleeper, furniture, piece of furniture, article of furniture: usage: a piece of furniture that can be opened up into a bed
8. sleeper, sleeper goby, percoid fish, percoid, percoidean: usage: tropical fish that resembles a goby and rests quietly on the bottom in shallow water
9. sleeper, hit, smash, smasher, strike, bang: usage: an unexpected hit; "that movie was the sleeper of the summer"