characterized by speed; rapid; swift; fast.

coming, given, or arrived at quickly or soon; prompt; not delayed

a speedy recovery.

adjective

delayed , halted , slowed , tardy

adjective

accelerated , agile , alacritous , breakneck , brisk , expeditious , express , fleet , harefooted , hasty , headlong , hurried , immediate , lissome , lively , nimble , precipitate , prompt , quick-fire , rapid , rapid-fire , ready , snappy , summary , supersonic , swift , ultrasonic , winged , quick , brief , fast , flying , short