decadal

D2E1C3A1D2A1L1
UK/ˈdɛkədəl/

adjective

Of or related to the number ten.

Similar
decennial
OriginProto-Indo-European *h₂élisder.? ← English decade →
UncommonScrabble 11
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Meanings

adjectivedecadal (not comparable)
  1. not comparableOf or related to the number ten.
  2. not comparableOf or related to a decade, in its various senses.

    About the same time in a decadal sense, there was a rather unexpected discovery.

    2017, W. Hugh Woodin, In search of Ultimate-L: The 19th Midrasha Mathematicae Lectures (Version: January 30, 2017), p. 2

    Synonyms: decennial

Synonyms & antonyms

adjectiveOf or related to a decade, in its various senses.

Similar
decennial

Origin

  1. Englishdecade
  2. Proto-Indo-European*h₂el-
  3. Proto-Indo-European*h₂élisder.?
  4. Englishdecadal

From decade + -al.

Full word history & related roots →
Cite this entry
APA

decadal. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/decadal

MLA

“decadal.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/decadal. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “decadal,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/decadal.

Source: decadal on Wiktionary, CC BY-SA 4.0.