antifilibuster

A US political term describing an action, rule, person, or position that opposes or seeks to prevent filibustering — the tactic of prolonging Senate debate to delay or block legislation. Used primarily in political journalism, legislative commentary, and academic discussion of American legislative procedure. Carries a policy-wonk register and is typically found in contexts debating Senate rules reform. Not broadly used as casual slang; it functions more as a descriptive political compound adjective.

(US, politics) Opposing or preventing filibuster.