Lifespan and Youth

Opposite meaning words

Lifespan noun - The period during which something is functional (as between birth and death).

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Youth is an antonym for lifespan in age topic.

Youth noun - A male person who has not yet reached adulthood.

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Lifespan is an antonym for youth.

Nearby Words: youthful, youthfully

A variation of this trope appears in Dragon Ball Z; according to the ''Daizenshuu'', Saiyans have roughly the same lifespan as humans, the only difference being that they retain their youth.

Source: Mayfly-December Romance
Fountain of Youth: Spells and potions that can alter your age are mentioned, but they do not actually affect your lifespan.

Source: Fanfic / The Two Sides Of Daring Do
They only work for one in a thousand, but for those they do work for, they can restore the appearance of youth, and add many years of actual lifespan.

Source: Longevity Treatment

Cite this Source

Youth and Lifespan. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/lifespan/youth

Lifespan & Youth. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/lifespan/youth>.

Youth or Lifespan. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/lifespan/youth.

Google Ngram Viewer shows how "lifespan" and "youth" have occurred on timeline