1
: having no beginning and no end in time : lasting forever
eternal life
eternal damnation
eternal bliss
the eternal flames of hell
light an eternal flame [=a small fire that is kept burning as a symbol to show that something will never end]
2
: existing at all times : always true or valid
eternal [=timeless] truths
in search of eternal wisdom
3
: seeming to last forever
When will his eternal whining stop?
Cite this Entry
“Eternal.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/eternal. Accessed 23 Jun. 2026.
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