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 graphite irrational paragraph an outdated system of sending messages over long distances by using wires and electrical signals.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