IPA: /ɪˈmɔːrəlɪst/
KK: /ɪˈmɔrəlɪst/
A person who supports or promotes behavior that is considered morally wrong or unethical.
The immoralist argued that societal rules should not dictate personal choices.
Immoralist → It is formed from "im-" (meaning not) and "moral" (from Latin "moralis", meaning relating to manners or ethics) and "-ist" (meaning a person who practices or is concerned with). The word "immoralist" refers to a person who does not adhere to moral principles or ethics.
Think of someone who is 'not' ('im-') following 'moral' principles — that's what an immoralist is.