idiosyncrasy
noun/ˌɪdiəˈsɪŋkrəsi/
Frequency rank: #19,745 of 20,003 in the WORDED list (wordfreq data)
Meaning
A distinctive habit or way of behaving that is peculiar to a particular person.

Example sentence
One charming idiosyncrasy of hers was that she always hummed quietly while reading.
Synonyms & related words
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