dis·u·til·i·ty 
(dĭs′y-tĭlĭ-tē)
(dĭs′y-tĭlĭ-tē)n. pl. dis·u·til·i·ties
1. The state or fact of being useless or counterproductive.
2. Something that is inefficient or counterproductive: an analysis of the relative disutilities of the two plans.