Hyperbolic \hahy-per-BOL-ik\ , adjective;
1. Using hyperbole; exaggertaing
2. Of or pertaining to a hyperbola
According to Etymonline.com:
This word dates back to the 1640's and comes from the Greek hyperbolikos ("extravagant") which derives from hyperbole. Hyperbole literally means "a throwing beyond," but it really conveys a sense of "extravagance." Geometric hyperbolic began around the 1670's.
*Today's word and the first definition were both taken from Dictionary.com's 'Word of the Day' for Wednesday, November 3