IPA: //ʌnˈleɪdɪlaɪk//
KK: /ʌnˈleɪdɪlaɪk/
Not behaving in a way that is considered appropriate for a woman, often implying a lack of grace or politeness.
Her loud laughter and rough manners were seen as unladylike by her peers.
Unladylike → It is formed from "un-" (meaning not) and "ladylike" (from "lady" meaning a woman of high social status and "-like" meaning resembling or characteristic of). The word "unladylike" describes behavior that is not characteristic of a lady or is considered inappropriate for a woman of high social standing.
Think of 'not' ('un-') behaving like a 'lady' — that's why unladylike means not behaving in a way that is expected of a lady.