adj. - The quality of being in the way. - With a negative connotation (suggesting or implying "unjustly" obstacular or obstacular due to incompetence). Usually referant to a human being, but can also apply to an inanimate object, such as an obstacular car driven by an ill-willed or incompetent person.
Middle manager, Fudley, was obstacular to my progress up the company ladder; he was selfishly and personally motivated and utilized "dirty" tactics.