bygone

adjective

by·​gone ˈbī-ˌgȯn 

also -ˌgän

: gone by : past

bygone days

especially : outmoded

bygone styles

bygone noun

Synonyms of bygone

• extinct
• defunct
• vanished
• gone

Examples of bygone in a Sentence

the bygone days of our ancestors

The stone wall is from a bygone age.

Recent Examples on the Web

Stickers celebrating bygone 21st birthdays cover the walls outside the bathrooms. — Dana O’Neil, CNN Money, 14 Sep. 2026

Something about the skylights transports me to a bygone New York rendered by cinema. — Nora Deligter, Curbed, 4 Sep. 2026

The first of two important points is many of those are backs who arguably would’ve tended to be drafted later in a bygone era. — Ben Gretch, New York Times, 4 Sep. 2026

Then there’s Jensen, a bygone-era marque from Britain that returned in 2010 as a restomod house. — Viju Mathew, Robb Report, 4 Sep. 2026

Word History

First Known Use

15th century, in the meaning defined above

Rhymes for bygone

• anton
• argon
• axon
• baronne
• baryon
• baton
• boron
• buisson
• capon
• cardon
• chiffon
• coupon

Kids Definition

bygone

adjective

by·​gone ˈbī-ˌgȯn 

also -ˌgän

: gone by : past

a bygone era

bygone noun