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Synonyms

eccentric

American  
[ik-sen-trik, ek-] / ɪkˈsɛn trɪk, ɛk- /
especially British, excentric

adjective

  1. deviating from the recognized or customary character, practice, etc.; irregular; erratic; peculiar; odd.

    eccentric conduct;

    an eccentric person.

    Synonyms:
    bizarre, weird, strange
    Antonyms:
    conventional, customary, ordinary, regular, normal
  2. Geometry. not having the same center; not concentric: used especially of two circles or spheres at least one of which contains the centers of both.

  3. (of an axis, axle, etc.) not situated in the center.

  4. Machinery. having the axis or support away from the center.

    an eccentric wheel.

  5. Astronomy. deviating from a circular form, as an elliptic orbit.


noun

  1. a person who has an unusual, peculiar, or odd personality, set of beliefs, or behavior pattern.

  2. something that is unusual, peculiar, or odd.

  3. Machinery. a device for converting circular motion into rectilinear motion, consisting of a disk fixed somewhat off-center to a revolving shaft, and working freely in a surrounding collar eccentricstrap, to which a rod eccentricrod is attached.

eccentric British  
/ ɪkˈsɛntrɪk /

adjective

  1. deviating or departing from convention, esp in a bizarre manner; irregular or odd

  2. situated away from the centre or the axis

  3. not having a common centre Compare concentric

    eccentric circles

  4. not precisely circular

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a person who deviates from normal forms of behaviour, esp in a bizarre manner

  2. a device for converting rotary motion to reciprocating motion

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • eccentrical adjective
  • eccentrically adverb
  • noneccentric adjective
  • noneccentrically adverb
  • uneccentric adjective
  • uneccentrically adverb

Etymology

Origin of eccentric

First recorded in 1350–1400; from Medieval Latin eccentricus, from Greek ékkentr(os) “out of center” ( ec-, center ) + Latin -icus -ic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

What the more casual spectator wants, and gets, is a highly dramatic, bingeable distillation of a sport that involves multimillion-dollar cars going in eccentric circles.

From The Wall Street Journal

What was viewed as merely eccentric in 1956, when Gavin Maxwell brought an otter back from the Tigris marshes, would now be seen as unethical, not to mention illegal.

From The Wall Street Journal

He was awkward, brooding and uneasy outside his eccentric family.

From The Wall Street Journal

The case attracted huge public attention, with Martin's supporters casting him as a man taking a stand to defend his home - and others believing he was a violent eccentric turned vigilante.

From BBC

Newsom’s dad helped connect the eccentric music composer “to the outside world,” the governor wrote.

From Los Angeles Times