Bygone and Lost

Similar meaning words

Bygone adjective - No longer existing.

Usage example: elderly people reminiscing about bygone fashions

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Lost is a synonym for bygone in past topic. In some cases you can use "Lost" instead an adjective "Bygone", when it comes to topics like in the past.

Lost adjective - No longer possessed.

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Bygone is a synonym for lost in extinct topic. You can use "Bygone" instead an adjective "Lost", if it concerns topics such as past.

Nearby Word: losing

It also contains lost kingdoms of Amazonian princesses, volcanoes, elephants' graveyards, lost diamond mines, strange ruins covered in hieroglyphics and hidden plateaus where the reptilian monsters of a bygone era romp and play.

Source: Lost World
Lost Technology: The Metatron Cannon, an ancient (and unequipable) doomsday weapon from a bygone civilization.

Source: Video Game / Crimson Gem Saga
On the other hand, there are all sorts of riches to be gained from these poorly explored places, including once-colonized planets that became separated from the Imperium, as well as Lost Technology from a bygone era of humanity.

Source: Non-Idle Rich

Cite this Source

Lost and Bygone. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/bygone/lost

Bygone & Lost. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/bygone/lost>.

Lost or Bygone. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/bygone/lost.

Google Ngram Viewer shows how "bygone" and "lost" have occurred on timeline