IPA: /ˌɛk.sɛnˈtrɪs.ɪ.ti/
KK: /ɪkˈsɛntrɪsɪti/
The quality or state of being unusual or different from what is generally accepted or expected.
Her eccentricity made her stand out in a crowd, as she often wore mismatched clothes and spoke in a unique way.
Eccentricity → It is formed from "ec-" (meaning out of) and "centrum" (meaning center). The word describes a quality of being out of the center or deviating from the norm.
Think of being 'out of' ('ec-') the 'center' ('centrum') — that's why eccentricity refers to a deviation from the norm.