Forgotten
Forgotten adjective - Left unoccupied or unused.
Lost
Lost adjective - No longer possessed.
Usage example: we searched all over the house for the lost keys
Forgotten is a synonym for lost in unnoticed topic. You can use "Forgotten" instead an adjective "Lost", if it concerns topics such as abandoned, extinct, missing, bygone. popular alternative
Nearby Word: losing
Mutual synonyms
Both words in one sentence
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It's heavily implied that three of the main races from the setting are forgotten and lost biological weapons.
Source: Lost Technology -
Knowledge may also be forgotten or lost (as has happened multiple times in human history when important libraries were burnt).
Source: Occam's Razor - The gods are perhaps a straighter example since they're really just regular people who developed highly advanced technology in ages past - most of which has been forgotten or lost even by their descendants.
Source: Legend Fades to Myth
Cite this Source
Lost and Forgotten. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/forgotten/lost
Forgotten & Lost. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/forgotten/lost>.
Lost or Forgotten. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/forgotten/lost.
Google Ngram Viewer shows how "forgotten" and "lost" have occurred on timeline