IPA: /ʌnˈhoʊlɪnəs/
KK: /ʌnˈhoʊlɪnəs/
The condition of being morally wrong or sinful; a lack of holiness.
The unholiness of his actions shocked everyone in the community.
Unholiness → It is formed from "un-" (meaning not) and "holy" (from Old English "halig", meaning sacred or consecrated) and "-ness" (meaning the state or quality of). The word "unholiness" refers to the state of being not holy or lacking in sacredness.
Think of 'not' ('un-') being added to 'holy' to remember that 'unholiness' means the state of being not sacred.