Thesaurus.com
Dictionary.com
Definitions

back number

ADJECTIVE
ancient
Synonyms
STRONGEST
age-old antique archaic hoary old-fashioned timeworn venerable
STRONG
aged antediluvian bygone elderly fossil oldie relic remote
WEAK
antiquated been around creaky early few miles on lot of mileage moth-eaten obsolete old goat older out-of-date outmoded primal primeval primordial rusty superannuated worse for wear
Antonyms
STRONGEST
current fresh modern new
STRONG
young
ADJECTIVE
behind the times
Synonyms
WEAK
antiquated dated has-been obsolete of the old school old hat old-fashioned out-of-date outdated outmoded passé square unfashionable
ADJECTIVE
outdated
Synonyms
STRONGEST
antiquated archaic obsolete old out-of-date outmoded
WEAK
anachronous antique dated démodé has-been moth-eaten old hat out out of style passé square tired unfashionable vintage
Antonyms
STRONGEST
contemporary current modern new present recent up-to-date young
ADJECTIVE
outdated/out-of-date
Synonyms
WEAK
anachronous antiquated antique archaic behind the times dated dusty démodé has-been moth-eaten musty not with it obsolete old old-hat out out of style outmoded passé square tired unfashionable vintage
Antonyms
WEAK
current fashionable modern new popular up-to-date

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Force did hit back, number eight Richard Brown creeping over after a quick pick-and-go from captain Matt Hodgson.

From BBC • Jun. 5, 2013

The fact that GM is back, number one, I think shows the kind of turnaround that’s possible when it comes to American manufacturing.”

From BusinessWeek • Feb. 2, 2012

“The adults are being sent back, number one.”

From Washington Post

But even this supergas�70% more powerful than 1931's best 87 octane fuel�is a back number with fuel technologists, who have recently concocted "no octane" gasoline�50% more powerful than 100 octane.

From Time Magazine Archive

I'm not constitutionally a back number myself either.

From At Good Old Siwash by Fitch, George