irrational - not thinking clearly; not able to use reason or good judgment, telegraph - an outdated system of sending messages over long distances by using wires, irregular - not normal or usual; not following the usual rules about what should be done;, nonexistent - not present or real; not existing, nonverbal - not involving words; not able to speak, autograph - the signature of a famous person, paragraph - a part of a piece of writing that deals with one subject, begins on a new line,, irrelevant - not important or relating to what is being discussed right now, graffiti - pictures or words painted or drawn on a wall, building, etc., graphite - a shiny, black substance that is used in pencils,

Graph Root and Ir and Non prefixes

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