What is "sleeper" in English? Definition and Explanations

Meaning of "sleeper": a rester who is sleeping

Noun

Meaning of "sleeper": 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

Noun

Meaning of "sleeper": an unexpected achiever of success

Noun

Meaning of "sleeper": one of the cross braces that support the rails on a railway track

Noun

Meaning of "sleeper": a passenger car that has berths for sleeping

Noun

Meaning of "sleeper": pajamas with feet; worn by children

Noun

Meaning of "sleeper": a piece of furniture that can be opened up into a bed

Noun

Meaning of "sleeper": tropical fish that resembles a goby and rests quietly on the bottom in shallow water

Noun

Meaning of "sleeper": an unexpected hit

Noun

Synonyms:

also-ran, long shot, underdog, improbability, unknown, hundred-to-one shot, little chance, little opportunity, outside chance, outside shot, poor bet, poor lookout, poor possibility, poor prognosis, poor prospect, slim chance, small chance, stalking horse, unexpected winner, unknown quantity, unlikelihood, unlikely winner, upsetter, lingerie, negligee, pajamas, nightdress, nightshirt, nightie, PJs, bedgown, nightrobe, nightdress, nightwear, jams, jammies, nightshirt, loungewear, nightie, jamas, lounging robe, sleeping suit, PJs, detective, secret agent, investigator, agent, informer, mole, operative, lookout, sleuth, plant, patrol, snoop, observer, spook, watcher, scout, picket, emissary, double agent, secret service, undercover agent, spotter, espionage agent, foreign agent, inside agent, intelligencer, slowpoke, up-and-comer, naïve person, Pullman car, roomette, sleeper car, wagon-lit,

Antonyms: