anti-incumbent
adjective
an·ti-in·cum·bent
ˌan-tē-in-ˈkəm-bənt
ˌan-tī-
: characterized by or expressing opposition to or disapproval of current political officeholders
Some would argue that 1994 was a mere extension of the anti-incumbent mood in 1992 that toppled President George Bush …—
Donald R. Wolfensberger
Love words? Need even more definitions?
Merriam-Webster unabridged



