eccentricity
ec·cen·tric·i·ty/ˌɛk.sɛnˈtɹɪs.ɪ.ti/noun
eccentricity is spelled E-C-C-E-N-T-R-I-C-I-T-Y: 12 letters and 5 syllables (ec·cen·tric·i·ty). It appears about once in every 1 million words in written English, the 35,320th most frequent word form (wordfreq, 2021 data). As a noun, eccentricity means “The quality of being eccentric or odd; any eccentric behaviour” (English Wiktionary, September 2026). The plural of eccentricity is eccentricities.
How many letters and syllables are in eccentricity?
| Letters | 12: E-C-C-E-N-T-R-I-C-I-T-Y |
|---|---|
| Syllables | 5: ec·cen·tric·i·ty |
| In writing | about once in every 1 million words; the 35,320th most frequent word form |
| Wrong spellings searched | none measured in search |
| Rhymes with |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is eccentricity?
Eccentricity appears about once in every 1 million words in written English, the 35,320th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce eccentricity?
- US /ˌɛk.sɛnˈtɹɪs.ɪ.ti/
- US [ˌɛk.sənˈtɹɪs.ə.ɾi]
Eccentricity has 5 syllables, split ec·cen·tric·i·ty in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-eccentricity.ogg, Wikimedia Commons (author and licence on each file's page).
What rhymes with eccentricity?
The 12 most written words on PlainSpell end in the same sounds as eccentricity from its last stressed vowel (/ɪsɪti/):
- authenticity
- specificity
- elasticity
- plasticity
- centricity
- chromaticity
- inauthenticity
- atomicity
- chronicity
- facticity
- benedicite
- rhoticity
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of eccentricity
- eccentricities plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does eccentricity mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The quality of being eccentric or odd; any eccentric behaviour.
- 2
The ratio, constant for any particular conic section, of the distance of a point from the focus to its distance from the directrix.
For an ellipse, the eccentricity is the ratio of the distance from the center to a focus divided by the length of the semi-major axis.
- 3
The eccentricity of the conic section (usually an ellipse) defined by the orbit of a given object around a reference object (such as that of a planet around the sun).
- 4
The farthest distance from a vertex to any other vertex.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Eccentricity in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | excentricité |
| Portuguese | excentricidade |
| Spanish | excentricidad |
| German | exzentrisches Verhalten , Exzentrizität |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does eccentricity come from?
Borrowed from Latin eccentricitās. By surface analysis, eccentric + -ity.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).