10
age(noun, living, lifetime, lifespan, aliveness)
10
appropriate(adjective, suitability, propriety, aptness)
8
appropriateness(noun, suitability, propriety, aptness, relevance)
7
applicability(noun, suitability, propriety, aptness, relevance)
7
aptness(noun, suitability, propriety, relevance)
7
suitableness(noun, suitability, propriety, aptness, relevance)
6
ageing(noun, living, lifetime, lifespan, aliveness)
6
aging(noun, living, lifetime, lifespan, aliveness)
6
aptitude(noun, suitability, propriety, aptness, relevance)
6
convenience(noun, suitability, propriety, aptness, relevance)
6
fitness(noun, suitability, propriety, aptness, relevance)
6
lifespan(noun, living, lifetime, aliveness)
6
lifetime(noun, living, lifespan, aliveness)
6
pertinence(noun, suitability, propriety, aptness, relevance)
6
propriety(noun, suitability, aptness, relevance)
6
relevance(noun, suitability, propriety, aptness)
6
suitability(noun, propriety, aptness, relevance)
3
condition(noun, feature, state, position, status)
3
feature(noun, state, position, status)
3
position(noun, feature, state, status)
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APASmart Define. (1970). age-appropriate thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/age-appropriate/thesaurus/broader
ChicagoSmart Define. 1970. "age-appropriate thesaurus" https://smartdefine.org/age-appropriate/thesaurus/broader (accessed September 21, 2026).
HarvardSmart Define 1970, age-appropriate thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/age-appropriate/thesaurus/broader>.
MLASmart Define. "age-appropriate thesaurus" 1 January 1970. Web. 21 September 2026. <https://smartdefine.org/age-appropriate/thesaurus/broader>