IPA: //ʌnˈraɪvld//
KK: /ʌnˈraɪvld/
Having no competitors; being the best in a particular area or field.
Her talent in music is unrivalled, making her the top performer in the competition.
Unrivalled → It is formed from "un-" (meaning not) and "rival" (from Latin "rivalis", meaning one who competes). The word "unrivalled" means not having any competitors or equals.
Think of 'not' ('un-') having any 'competitors' ('rival') — that's why something that is unrivalled stands alone without equal.