4
month(noun, period)
4
past
4
week(noun, period)
3
aliveness
3
animation
3
everlasting(adjective, durable)
3
for life(expression, idiom)
3
history(noun, course, duration)
3
life-time
3
liveliness
3
second(noun, period)
3
term(noun, time, period, live)
3
year(noun, period)
2
century
2
continuance(noun, span)
2
course(noun, time, life, span, duration)
2
enduring(adjective, durable)
2
lasting(adjective, durable)
2
lastingness(noun, age)
2
life expectancy(noun, expression, idiom, time, course)
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APASmart Define. (2015). lifetime thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/lifetime/thesaurus/synonyms
ChicagoSmart Define. 2015. "lifetime thesaurus" https://smartdefine.org/lifetime/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, lifetime thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/lifetime/thesaurus/synonyms>.
MLASmart Define. "lifetime thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/lifetime/thesaurus/synonyms>