Synonyms|202Antonyms|3|Broader|4Narrower|0Related|189
10
older(adjective, rank, post, status, age)
9
firstborn(adjective, age, oldness)
8
oldest(noun, adjective, senior, older, elder)
7
elder(adjective, rank, post, status, age)
7
senior(adjective, rank, post, status, age)
6
first-born(adjective, rank, post, status, age)
4
first(adjective, rank, post, status, age)
3
chief(adjective, rank, post, status, age)
3
doyen
3
major(adjective, rank, post, status, age)
3
superior(adjective, rank, post, status, age)
3
uppermost(adjective, rank, post, status, age)
2
antique
2
dean
2
former(senior, oldest)
2
most senior(expression, senior, oldest)
2
sire
1
adult
1
advanced in years(expression, idiom)
1
ancient
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APASmart Define. (2015). eldest thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/eldest/thesaurus/synonyms
ChicagoSmart Define. 2015. "eldest thesaurus" https://smartdefine.org/eldest/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, eldest thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/eldest/thesaurus/synonyms>.
MLASmart Define. "eldest thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/eldest/thesaurus/synonyms>