supersonic

agile brisk hot nimble quick rapid swift

accelerated active dashing electric flashing fleet fleeting flying hurried racing ready snap split-second winged

PDQ blue streak breakneck double-time expeditious expeditive hairtrigger hasty hypersonic in a jiffy in nothing flat lickety split like a bat out of hell like all get out like crazy like mad on the double posthaste presto pronto screamin' snappy speedball velocious

clumsy slow

dull

plodding tardy unhurried

accelerated brisk expeditious hasty hurried immediate prompt rapid swift

agile alacritous breakneck express fleet harefooted headlong lissome lively nimble precipitate quick-fire rapid-fire ready snappy split-second summary ultrasonic winged

delayed leisurely slow sluggish

halted slowed tardy

abrupt expeditious hasty nimble quick rapid speedy sudden unexpected

cracking express fleet flying precipitate prompt ready screaming short spanking

alacritous barrelling breakneck double-quick fleet-footed headlong hurried in nothing flat like crazy like mad on the double pronto shaking a leg short-lived snappy speedball winged

delayed expected lazy leisurely slow

sluggish

airplane plane

airbus

supersonic transport turbo