Word.ws English Dictionary

semimillennial

semimillennial adjective: of or related to a 500th anniversary.

Adjective

semimillennial (not comparable)

  1. Of or related to a 500th anniversary.
    • On the occasion of the semimillennial anniversary of Uppsala University, Twelfth Symphony by the romantic Swedish composer Allan PETTERSSON, entitled De Döda på Torget (The Dead in the Marketplace) for chorus and orchestra […] is performed for the first time by the Stockholm Philharmonic.2001, Laura Kuhn, Music since 1900, 6th edition, New York, N.Y.: Schirmer Reference, →ISBN, page 689
    Synonyms:
    quincentennial

Noun

semimillennial (plural semimillennials)

  1. A 500th anniversary.
    • At a casual glance [Karl] Jaspers’ words seem to deprecate research, strange doctrine to preach at the semimillennial of an institution of learning as distinguished as the University of Basel.1969/1970 Winter, Gerald W. Johnson, “Program for the Mini-Intellectual”, in Hiram Haydn, editor, The American Scholar, volume 39, number 1, Richmond, Va.: Phi Beta Kappa, page 50
    Synonyms:
    quincentennial

Synonyms of semimillennial

Forms of semimillennial

pluralsemimillennials

Origin of semimillennial

From semi- + millennial.

Questions about semimillennial

What does semimillennial mean?
Semimillennial means of or related to a 500th anniversary.
What part of speech is semimillennial?
Semimillennial can be an adjective or a noun.

Words near semimillennial in the dictionary

  1. semimicrocuvettes
  2. semimicroelectrode
  3. semimicroelectrodes
  4. semimild
  5. semimilitary
  6. semimillennial
  7. semimineralized
  8. semiminim
  9. semiminims
  10. semiminor
  11. semiminor axes

Source and license

Adapted from Wiktionary: semimillennial (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.

Last updated:

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