Synonyms|124Antonyms|2|Broader|2Narrower|0Related|65
3
yearly
2
exotic
2
anniversary
2
catamenial
2
time period
1
amphibian
1
angiosperm
1
annual holiday
1
aquatic plant
1
biannual
1
bicentenary
1
bicentennial
1
bissextile day
1
centenary
1
commemoration
1
cosmopolite
1
cutting
1
decennial
1
deciduous plant
1
diamond jubilee
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APASmart Define. (2015). triennial thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/triennial/thesaurus/synonyms
ChicagoSmart Define. 2015. "triennial thesaurus" https://smartdefine.org/triennial/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, triennial thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/triennial/thesaurus/synonyms>.
MLASmart Define. "triennial thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/triennial/thesaurus/synonyms>