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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:

Gibraltar Chief Minister Fabian Picardo has described the agreement as removing "the physical barriers of a bygone era of friction" while keeping "the keys to our own front door".

From Barron's Jul. 14, 2026

Palaeoanthropology must regain its glory as a science that’s not only about bones, but that’s an ethological, cultural, and social study of bygone human societies.

From Science Daily Jul. 7, 2026

It was a crowd-pleasing moment, to be sure, but more in keeping with the bygone era of TV variety shows than with prime Broadway.

From Los Angeles Times Jun. 22, 2026

“The kind of incrementalism that Eric Murphy seems to be doing is something from a bygone era, where people were more pragmatic in the movement and not punished for it,” she said.

From Salon Jun. 8, 2026

Tears welled up in her eyes as she thought of the bygone times, and very softly she began to murmur the words to the song.

From "The Cricket in Times Square" by George Selden

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