reassure Antonyms

worry dumfound nettle nonplus overawe overwhelm panic paralyse paralyze pasquil perturb irritate irk embarrass exercise faze flabbergast flurry frighten haunt horrify intimidate petrify put-off upset vex get to get down take aback knock sideways knock the stuffing out of throw off balance knock for six unsettle unnerve sadden scare shake shock torment torture trouble undo unhinge break someone's spirit drugging abash awe benumb bewilder