perk up Antonyms

get worse again become worse break someone's heart get down cast down worsen weaken upset unnerve undermine subdue knock sideways throw off balance cast a gloom on put someone off their stroke cause someone to lose their composure get the flu catch the flu give someone the blues break someone's spirit break one's heart make unhappy get worse sadden frustrate fatigue deteriorate desolate depress demoralize deject degrade degenerate decline debilitate annoy devitalize disconcert enervate disturb distress dispirit disparage dismay dishearten disenchant disempower discourage agitate