GMAT Vocabulary Flash Cards @ englishpdf.com and englishteststore.com File 141 controller (n) One who or that which regulates or directs contumacious (adj) Rebellious contumacy (n) Contemptuous disregard of the requirements of rightful authority contuse (v) To bruise by a blow, either with or without the breaking of the skin contusion (n) A bruise conundrum (n) a puzzle or riddle convalesce (v) To recover after a sickness convalescence (n) The state of progressive restoration to health and strength after the cessation of disease