• (RP) IPA: /ɪkˈsɛntɹɪk/
  • (America) IPA: /ɛkˈsɛntɹɪk/


  1. Not at or in the centre; away from the centre.
    • 2011, Michael Laver, Ernest Sergenti. Party Competition: An Agent-Based Model, page 125 ↗,
      Strikingly, we see that party births tend systematically to be at policy positions that are significantly more eccentric than those of surviving parties, whatever decision rule these parties use.
  2. Not perfectly circular; elliptical.
    As of 2008, Margaret had the most eccentric orbit of any moon in the solar system, though Nereid's mean eccentricity is greater.
  3. Having a different center; not concentric.
  4. (of a person) Deviating from the norm; behaving unexpectedly or differently.
    • 1801, Author not named, Fyfield (John), entry in Eccentric Biography; Or, Sketches of Remarkable Characters, Ancient and Modern, page 127 ↗,
      He was a man of a most eccentric turn of mind, and great singularity of conduct.
    • 1807, G. H. Wilson (editor), The Eccentric Mirror, Volume 3, page 17 ↗,
      Such is not the case with Mr. Martin Van Butchell, one of the most eccentric characters to be found in the British metropolis, and a gentleman of indisputable science and abilities, but whose strange humors and extraordinary habits, have rather tended to obscure than to display the talents he possessed.
    • 1902, William James, The Varieties of Religious Experience, Lecture I:
      There can be no doubt that as a matter of fact a religious life, exclusively pursued, does tend to make the person exceptional and eccentric.
    • 1956, Arthur C. Clarke, The City and the Stars, 2012, unnumbered page ↗,
      Khedron was the only other person in the city who could be called eccentric—and even his eccentricity had been planned by the designers of Diaspar.
  5. (physiology, of a motion) Against or in the opposite direction of contraction of a muscle (e.g., such as results from flexion of the lower arm (bending of the elbow joint) by an external force while contracting the triceps and other elbow extensor muscles to control that movement; opening of the jaw while flexing the masseter).
  6. Having different goals or motives.
    • ante 1626 Francis Bacon, 1867, Richard Whately (analysis and notes), James R. Boyd (editor), Essay XI: Wisdom for a Man's Self, Lord Bacon's Essays, [,+which+must+needs+be+often+eccentric%22&hl=en&sa=X&ei=F_SnU9PEKc708QWQ74KIAw&ved=0CB0Q6AEwAA#v=onepage&q=%22his%20own%20ends%2C%20which%20must%20needs%20be%20often%20eccentric%22&f=false page 171],
      […] for whatsoever affairs pass such a man's hands he crooketh them to his own ends, which must needs be often eccentric to those of his master or state: […]
Synonyms Antonyms Related terms Translations Translations Translations Translations Noun

eccentric (plural eccentrics)

  1. One who does not behave like others.
    • 1989, Jeffrey Robinson, Rainier and Grace, page 26:
      A tiny, feisty woman who always spoke her mind, Charlotte was an eccentric in the wonderful way that some women from the last century were natural eccentrics.
    • 1998, Michael Gross, Life On The Edge, 2001, page ix ↗,
      Eccentrics live longer, happier, and healthier lives than conformist normal citizens, according to the neuropsychologist David Weeks.
  2. (slang) A kook; a person of bizarre habits or beliefs.
  3. (geometry) A circle not having the same centre as another.
  4. (engineering) A disk or wheel with its axis off centre, giving a reciprocating motion.
Synonyms Translations Translations
  • German: Exzenter
  • Russian: эксце́нтрик

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