nonstationary

N1O1N1S1T1A1T1I1O1N1A1R1Y4

adjective

Not stationary.

OriginEnglish stationary ← Middle English non- ← Old English nān- →
UncommonScrabble 16
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Meanings

adjectivenonstationary (not comparable)

alternative non-stationary

  1. not comparableNot stationary.
nounnonstationary (plural nonstationaries)

plural nonstationaries · alternative non-stationary

  1. mathematicsA data point whose statistical properties (mean, variance, covariance) are not constant over time.

Origin

  1. Proto-Indo-European*né
  2. Proto-Germanic*ne
  3. Proto-Indo-European*ís?
  4. Proto-Indo-European*h₁óynos
  5. Proto-Germanic*ainaz
  6. Proto-Germanic*nainaz
  7. Proto-West Germanic*nain
  8. Old Englishnān
  9. Middle Englishnon
  10. Old Englishnān
  11. Old Englishnān-
  12. Middle Englishnon-
  13. Englishnon-
  14. Englishstationary
  15. Englishnonstationary

From non- + stationary.

Full word history & related roots →
Cite this entry
APA

nonstationary. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/nonstationary

MLA

“nonstationary.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/nonstationary. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “nonstationary,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/nonstationary.

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