im·ped·i·ment /im-'pe-də-mənt/ n: something that prevents or interferes with a process, power, or right
should have known of the legal impediment s to the execution of any judgment against the police jury — Penalber v. Blount, 550 So. 2d 577 (1989); specif: a bar to the formation of a valid contract or marriage compare nullity
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.