IPA: /rɪˌpjuːdiˈeɪʃənɪst/
KK: /rɪˌpjuːdiˈeɪʃənɪst/
A person who supports the rejection or disavowal of something, especially in the context of denying responsibility for a debt or obligation.
The repudiationist argued against the previous administration's financial decisions.
Repudiationist → It is formed from "repudiare" (meaning to reject or disown) and "-ist" (meaning a person who practices or advocates). A repudiationist is someone who advocates for the rejection of a particular belief or practice.
Think of someone who 'rejects' ('repudiare') certain ideas or beliefs — that's what a repudiationist does.