Word.ws English Dictionary

pentennial

pentennial adjective: synonym of quinquennial: occurring every five years.

Adjective

pentennial (not comparable)

  1. (rare) Synonym of quinquennial: occurring every five years.
    • The family had plans to attend the pentennial reunion.
    Synonyms:
    quinquennial

Synonyms of pentennial

Origin of pentennial

From Ancient Greek πέντε (pénte, “five”) + Latin annus (“year”) + -ial.

Questions about pentennial

What does pentennial mean?
Pentennial means synonym of quinquennial: occurring every five years.
What part of speech is pentennial?
Pentennial is an adjective.

Words near pentennial in the dictionary

  1. Pentelikon
  2. pentels
  3. penten-
  4. pentene
  5. pentenes
  6. pentennial
  7. pentenoate
  8. pentenoates
  9. pentenoic acid
  10. pentenoic acids
  11. pentenol

Source and license

Adapted from Wiktionary: pentennial (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “pentennial.” Word.ws, https://word.ws/pentennial. Based on Wiktionary, CC BY-SA 4.0.