Centuries old
Forever and centuries old are semantically related. In some cases you can use "Forever" instead an adjective phrase "Centuries old".
Forever
Forever adverb - For all time.
Centuries old and forever are semantically related. You can use "Centuries old" instead an adjective "Forever".
Mutual synonyms
Both terms in one sentence
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When Elena unexpectedly meets handsome, brooding, intense, and mysterious Stefan, who is a centuries old immortal, her life dramatically changes forever.
Source: Literature / The Vampire Diaries - Also supported by the Legends character Fay, who is already several centuries old in her first-and-only appearance, and is stated to have such a strong connection to the Force that she might "live forever".
Source: Wizards Live Longer
Cite this Source
Forever and Centuries old. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/centuries_old/forever
Centuries old & Forever. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/centuries_old/forever>.
Forever or Centuries old. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/centuries_old/forever.
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