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Synonyms

bygone

American  
[bahy-gawn, -gon] / ˈbaɪˌgɔn, -ˌgɒn /

adjective

  1. past; gone by; earlier; former.

    The faded photograph brought memories of bygone days.


noun

  1. Usually bygones. that which is past.

    Let's not talk of bygones.

idioms

  1. let bygones be bygones, to decide to forget past disagreements; become reconciled.

    Let's let bygones be bygones and be friends again.

bygone British  
/ ˈbaɪˌɡɒn /

adjective

  1. (usually prenominal) past; former

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. (often plural) a past occurrence

  2. (often plural) an artefact, implement, etc, of former domestic or industrial use, now often collected for interest

  3. to agree to forget past quarrels

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of bygone

1375–1425; late Middle English (north) by-gane; see gone, by


Explanation

The adjective bygone is good for describing long-ago times. Your grandparents might enjoy looking at old photo albums and reminiscing about bygone days. A bygone era happened in the distant past, and a bygone sweetheart is an early romantic interest remembered by someone who's since lived a long life. You're most likely to see the phrase "bygone days" being used in a nostalgic way. If someone says, "Let bygones be bygones," they want to make up for long-ago slights and arguments, leaving them in the past where they belong.

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Vocabulary lists containing bygone

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.

See Examples For:

“The ornamentation and the craftsmanship represent a bygone era.”

From Los Angeles Times ● Oct. 12, 2026

"One might be tempted to imagine the 'gentleman scientist' as a bygone era, but it's alive and well here in Berkeley."

From Science Daily ● Sep. 26, 2026

From old Hollywood's Marilyn Monroe to adorning singer Sabrina Carpenter in a pearly dress reminiscent of the 90s, Mackie's ensembles felt new and exciting – even when they recalled a bygone age.

From BBC ● Sep. 15, 2026

Harry Styles’ queer residency, and other spectacles like it, are what is left until a new bygone era arrives in time.

From Salon ● Sep. 6, 2026

Furthermore, it was happening in the present, not in bygone days of fabled deeds.

From "Redwall" by Brian Jacques

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