placidly Antonyms

extremely fast high-speed snappy rapid quick prompt piquantly pell-mell noisily acerbically at the top of one's voice disquietingly hypervelocity hypersonic hyperactive frenetically fiercely excitedly excitably energetically nimble meteoric irritably boisterously blistering berserk angrily aloud agitatedly acidly accelerated breakneck brisk dramatically intolerantly instantaneous hurried hasty harshly express explosively expeditious abashedly