ABSTRACT This article describes the conceptualizations of the term kairos, generally taken to mean “the opportune moment,” by Isocrates. Though Isocrates was instrumental in developing kairos as a “quasi-technical” concept within the rhetorical art, his use of the word was highly nuanced and could be applied in one of three poles of meaning: (1) “circumstances”; (2) notions of the “appropriate”; and (3) “opportunity,” an orientation of elements within a particular moment that either supplies or shuts off a path toward a (...) strategic outcome. Furthermore, over half of Isocrates’s eighty-five uses of the term and its variants have little to do with rhetorical theory per se but are simply incidental modifiers of matters under discussion. Accordingly, though kairos is an important term of art for Isocrates, only nuanced reading of the context can reveal his meaning for any given use of the word. (shrink)