IPA: //ʌnˈsiːt//
KK: /ʌnˈsit/
To remove someone from a position or place, especially from a position of power or authority.
The scandal could unseat the current mayor from office.
Past: unseated
Past Participle: unseated
Unseat → It is formed from "un-" (meaning not or opposite of) and "seat" (from Old English "sæte", meaning a place to sit). The word "unseat" means to remove someone from their position or place, effectively making them not seated.
Think of 'un-' meaning not or opposite, and 'seat' as a place to sit — so unseat means to take someone out of their place.