dishearten Play verbCause (someone) to lose determination or confidence. SYNONYMS bluecast downcowcrestfallencrushcrusheddauntdaunteddejectdejecteddemoralizedemoralizeddepressdepresseddesolatedespondentdeterdeterreddisappointdisappointeddisconsolatediscouragediscourageddismaydismayeddispiritdispiriteddowndown in the dumpsdown in the mouthdownheartedenervategive someone the bluesknock for sixknock sidewaysknock the stuffing out oflowlow-spiritedmake crestfallenmake dejectedmake dispiritedmake downheartedmake someone fed upput a damper onsaddensaddenedsapsappedshakeshakensubduethrowthrownundermineunmanunmannedunnerveunnervedweakenweigh downweigh heavily onweighed down