idiosyncratic
definition
peculiar or individual characteristic or habit
example
His idiosyncratic style of painting often includes vibrant colors and unconventional shapes that reflect his unique perspective.
synonyms
peculiareccentricquirky
word origin — from the Greek 'idiosynkratikos', which is derived from 'idios' meaning 'private, peculiar' and 'synkratein' meaning 'to mix together.'