"The term "interest" lacks a precise antonym. In English, we have "disinterested" and "uninteresting," but we want for a term that denotes robust opposition to interest. The same appears to hold true in every other language (as far as we know). Interest's missing antonym reflects not merely a widespread lexical oversight, but a misrecognition of interest's complete and exact meaning. More importantly, the idea that interest has no opposite expresses...