noun ec·cen·tric·i·ty \ˌek-(ˌ)sen-ˈtri-sə-tē\

: the quality of being strange or unusual in behavior

: an act or habit that is strange or unusual

plural ec·cen·tric·i·ties

Full Definition of ECCENTRICITY

a :  the quality or state of being eccentric
b :  deviation from an established pattern or norm; especially :  odd or whimsical behavior
a :  a mathematical constant that for a given conic section is the ratio of the distances from any point of the conic section to a focus and the corresponding directrix
b :  the eccentricity of an astronomical orbit used as a measure of its deviation from circularity


  1. Some people weren't very tolerant of his eccentricity.
  2. Talking to her plants is one of her many eccentricities.

First Known Use of ECCENTRICITY



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July 04, 2015
stringent Hear it
rigorous, strict, or severe
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