Sleeper

Synonyms for sleeper
noun remote possibility

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

Synonyms
noun dress in which to sleep

lingerie
negligee
pajamas

nightdress
nightshirt
nightie

PJs
bedgown
nightrobe

Synonyms
noun sleeping clothes

nightdress
nightwear
jams

jammies
nightshirt
loungewear

nightie
jamas
lounging robe

sleeping suit
PJ’s

Synonyms
noun person who secretly finds out about another’s business

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

Synonyms
noun person slow to develop talent

slowpoke

up-and-comer

naïve person

Antonyms

child prodigy

Synonyms
noun railroad overnight car

Pullman car

roomette

sleeper car

wagon-lit