Sextennial
Triennial and sextennial are semantically related. In some cases you can replace term "Triennial" with "Sextennial", this words are similar.
Triennial
Triennial adjective - Occurring every third year or lasting 3 years.
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Synonyms for Triennial
Sextennial and triennial are semantically related. Sometimes you can replace term "Sextennial" with "Triennial", this adjectives are similar.
Mutual synonyms
Cite this Source
Triennial and Sextennial. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/sextennial/triennial
Sextennial & Triennial. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/sextennial/triennial>.
Triennial or Sextennial. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/sextennial/triennial.
Google Ngram Viewer shows how "sextennial" and "triennial" have occurred on timeline