RichThesaurus
dangerously fast
dangerously fast
synonyms
lightning
rapid
flat out
reckless
breakneck
excessive
at full tilt
speedy
whirlwind
headlong
precipitate
high-speed
like greased lightning
like a bat out of hell
like billy-o
hell for leather
like the clappers
extremely fast
like a bomb
at full speed
at full pelt
like the wind
as fast as one's legs can carry one
at a lick
ventre à terre
at a rate of knots
dangerous
at breakneck speed
dangerously fast
antonyms
extremely slow