eccentric

1 of 2

adjective

ec·​cen·​tric ik-ˈsen-trik How to pronounce eccentric (audio)
ek-
1
a
: deviating from conventional or accepted usage or conduct especially in odd or whimsical ways
an eccentric millionaire
b
: deviating from an established or usual pattern or style
eccentric products
2
a
: deviating from a circular path
especially : elliptical sense 1
an eccentric orbit
b
: located elsewhere than at the geometric center
also : having the axis or support so located
an eccentric wheel
eccentrically adverb

eccentric

2 of 2

noun

1
: a person who behaves in odd or unusual ways : an eccentric person
2
: a mechanical device consisting of an eccentric (see eccentric entry 1 sense 2b) disk communicating its motion to a rod so as to produce reciprocating motion

Did you know?

Eccentric was originally a technical term at home in the fields of geometry and astronomy. It comes from a Latin word meaning “not having the earth at its center,” and ultimately has its root in a Greek word with various meanings including “stationary point of a pair of compasses” and “midpoint of a circle or sphere.” But its figurative use is long-established too: as far back as the 17th century the word was used to describe people and things that deviate from what is conventional, usual, or accepted.

Choose the Right Synonym for eccentric

strange, singular, unique, peculiar, eccentric, erratic, odd, quaint, outlandish mean departing from what is ordinary, usual, or to be expected.

strange stresses unfamiliarity and may apply to the foreign, the unnatural, the unaccountable.

a journey filled with strange sights

singular suggests individuality or puzzling strangeness.

a singular feeling of impending disaster

unique implies singularity and the fact of being without a known parallel.

a career unique in the annals of science

peculiar implies a marked distinctiveness.

the peculiar status of America's First Lady

eccentric suggests a wide divergence from the usual or normal especially in behavior.

the eccentric eating habits of preschoolers

erratic stresses a capricious and unpredictable wandering or deviating.

a friend's suddenly erratic behavior

odd applies to a departure from the regular or expected.

an odd sense of humor

quaint suggests an old-fashioned but pleasant oddness.

a quaint fishing village

outlandish applies to what is uncouth, bizarre, or barbaric.

outlandish fashions of the time

Examples of eccentric in a Sentence

Adjective It was Charles Darwin's eccentric mathematician cousin Francis Galton who in 1874 ignited the nature-nurture controversy.  … Matt Ridley, Time, 2 June 2003
Eccentric drifters that normally roam the farthest reaches of the solar system, these daredevils fly so close to the Sun that they pass through its scorching corona. Maggie McKee, Astronomy, December 2002
In the spit-and-polish Navy, he and his equally unkempt colleagues were regarded as eccentric. David M. Kennedy, Atlantic, March 1999
He was a kind but eccentric man. She's become more eccentric over the years. Noun It wasn't until she [Mother Teresa] had set up a leprosarium outside Calcutta on land provided by the government that I began to see her as an idealist rather than an eccentric. Bharati Mukherjee, Time, 14 June 1999
To his own townspeople Thoreau was a radical and an eccentric, a man without a vocation, supporting himself doing odd jobs, devoting himself to what seemed to them inconsequential rambles, and living like a hermit on the shores of Walden Pond. Maxine Kumin, In Deep, 1987
But Mozart was also an eccentric, brought up not as a creature of society but as a prodigious child speaking a language of sound. Mozart couldn't "handle people," as one former friend put it. Edward Rothstein, New York Times Book Review, 31 Oct. 1982
an eccentric who designed his house to look like a Scottish castle
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
Watch The Ultimate Christmas Present on Disney+ 'Twas the Night Bryan Cranston stars as eccentric uncle Nick Wrigley in this 2001 comedy. Sydni Ellis, People.com, 15 Dec. 2024 Deforestation, overgrazing, droughts, predation by wild dogs and other threats loom over the future of this eccentric animal. Scott Travers, Forbes, 13 Dec. 2024
Noun
Long before its golden sands and rocky coves became reality TV-famous, Laguna Beach was known as an enclave for artists, eccentrics, surfers, and bohemians. Christina Pérez, Vogue, 21 Nov. 2024 That someone was Gary Paxton, one of the true eccentrics in the early fly-by-night Hollywood rock ‘n’ roll industry. Jordan Runtagh, People.com, 2 Nov. 2024 See all Example Sentences for eccentric 

Word History

Etymology

Adjective

borrowed from Medieval Latin ecentricus, excentricus "not concentric with another circle, (of a planetary orbit in Ptolemaic astronomy) not having the earth exactly at its center," from Late Latin eccentros, eccentrus "not having the earth at its center" (borrowed from Greek ékkentros, from ek- ec- + -kentros, adjective derivative of kéntron "sting, goad, point, stationary point of a pair of compasses, midpoint of a circle or sphere") + Latin -icus -ic entry 1 — more at center entry 1

Noun

Middle English excentryke "planetary orbit of which the earth is not the center," borrowed from Medieval Latin excentricus, noun derivative of ecentricus, excentricus "(of a planetary orbit in Ptolemaic astronomy) not having the earth exactly at its center" — more at eccentric entry 1

First Known Use

Adjective

1642, in the meaning defined at sense 2a

Noun

1827, in the meaning defined at sense 2

Time Traveler
The first known use of eccentric was in 1642

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Dictionary Entries Near eccentric

Cite this Entry

“Eccentric.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eccentric. Accessed 24 Dec. 2024.

Kids Definition

eccentric

1 of 2 adjective
ec·​cen·​tric ik-ˈsen-trik How to pronounce eccentric (audio)
ek-
1
a
: acting or thinking in an unusual way
b
: not of the usual or normal kind
2
: not following a truly circular path
an eccentric orbit
eccentrically adverb

eccentric

2 of 2 noun
: a strange or eccentric person

Medical Definition

eccentric

1 of 2 adjective
ec·​cen·​tric ik-ˈsen-trik, ek- How to pronounce eccentric (audio)
: deviating from an established pattern or from accepted usage or conduct
eccentrically adverb

eccentric

2 of 2 noun
: an eccentric individual

More from Merriam-Webster on eccentric

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