Word.ws English Dictionary

trigesimal

trigesimal adjective: thirtieth.

Adjective

trigesimal (not comparable)

  1. (obsolete) Thirtieth.
    • In the trigesimal year of his reign...
  2. (rare) Containing thirty of something.
    • Each month is a roughly trigesimal period.

Noun

trigesimal (uncountable)

  1. The trigesimal number system; base 30.

Origin of trigesimal

From Latin trigesimus (“thirtieth”) + -al (“forming adjectives”).

Words formed from trigesimal

Questions about trigesimal

What does trigesimal mean?
Trigesimal means thirtieth.
What part of speech is trigesimal?
Trigesimal can be an adjective or a noun.

Words near trigesimal in the dictionary

  1. trigenic acid
  2. trigenomic
  3. trigenous
  4. Triger process
  5. trigermane
  6. trigesimal
  7. trigesimo-secundo
  8. trigesimo-secundos
  9. trigevolol
  10. Trigg
  11. Trigg County

Source and license

Adapted from Wiktionary: trigesimal (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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