Kairos is an appeal to the timeliness of the argument. Two common rhetorical devices are irony and metaphor. The use of irony in rhetoric is primarily to convey to the audience an incongruity that is often used as a tool of humor in order to deprecate or ridicule an idea or course of action.
Definition of irritant for English Language Learners. : 1  something that makes part of your body sore and painful. : 2  something that is unpleasant or annoying : something that irritates you.
irritate, exasperate, nettle, provoke, rile, peeve mean to excite a feeling of anger or annoyance. irritate implies an often gradual arousing of angry feelings that may range from mere impatience to rage constant nagging that irritated me greatly. exasperate suggests galling annoyance and the arousing of extreme impatience his exasperating habit of ...