uncerciderate Share definition Flag a word used by incompetent people who never learned how to spell, mainly petty children. " People are starting to become really mean, snobby, rude and really really uncerciderate twords me. " uncerciderate by ashortstackofpancakes December 29, 2017 0 0 Get merch Get the uncerciderate mug. Buy Now — $32.95 See more merch