• (n.) One who contemns; a despiser; a scorner.
Con·tem'ner (kŏn*tĕm'nẽr or -tĕm'ẽr) noun One who contemns; a despiser; a scorner. ' Contemners of the gods.' South. 
archaic or obsolete terms > General: One who despises, scorns and takes no account of what is being discussed. Someone with a negative viewpoint.
contemner Someone who contemns; a despiser; a scorner.