Memory Lesson 1 VocabVersion en ligne Review for your lesson 1 vocab retake quiz par Chelsea Senopole irrational graphite autograph not present or real; not existing. irregular not thinking clearly; not able to use reason or good judgment. paragraph irrelevant the signature of a famous person telegraph not normal or usual; not following the usual rules about what should be done; not regular in form or shape. nonexistent a part of a piece of writing that deals with one subject, begins on a new line, and is made up of one or more sentences. not involving or using words; not able to speak. not important or relating to what is being discussed right now. an outdated system of sending messages over long distances by using wires and electrical signals. graffiti nonverbal a shiny, black substance that is used in pencils. pictures or words painted or drawn on a wall, building, etc.