Synonyms|56Antonyms|0|Broader|1Narrower|0Related|28
1
septuagenarian
1
sexagenarian
0
eighty
0
teens
0
baker's dozen(expression, idiom, five)
0
cardinal
0
cinque
0
five and twenty(expression, idiom, five)
0
four and twenty(expression, idiom, five)
0
four score(expression, idiom, five)
0
half-a-dozen
0
half a hundred(expression, idiom, five)
0
half dozen(expression, idiom, five)
0
hundred
0
large integer(expression, idiom)
0
long dozen(expression, idiom, five)
0
nonagenarian's age
0
quincux
0
quintuplet
0
sestiad
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APASmart Define. (2015). ninety thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/ninety/thesaurus/synonyms
ChicagoSmart Define. 2015. "ninety thesaurus" https://smartdefine.org/ninety/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, ninety thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/ninety/thesaurus/synonyms>.
MLASmart Define. "ninety thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/ninety/thesaurus/synonyms>