negaholic

Noun

 * 1)  A person who has a persistently negative or pessimistic outlook.
 * 2) * 2012, Mark Dery, I Must Not Think Bad Thoughts: Drive-By Essays on American Dread, American Dreams, University of Minnesota Press (2012) ISBN 9780816677733, page 172:
 * Even so, those whom corporate trainer and management consultant Chérie Carter-Scott would call “negaholics” will take glum comfort in the news that some Americans seem to be tiring of the Pursuit of Wow.
 * Even so, those whom corporate trainer and management consultant Chérie Carter-Scott would call “negaholics” will take glum comfort in the news that some Americans seem to be tiring of the Pursuit of Wow.