acting or moving or capable of acting or moving quickly; swift

accomplished in or lasting a short time

adapted to or facilitating rapid movement

requiring rapidity of action or movement

(of a clock, etc) indicating a time in advance of the correct time

given to an active dissipated life

of or characteristic of such activity

not easily moved; firmly fixed; secure

firmly fastened, secured, or shut

steadfast; constant (esp in the phrase fast friends)

(of a playing surface, running track, etc) conducive to rapid speed, as of a ball used on it or of competitors playing or racing on it

that will not fade or change colour readily

(of a bowler) characteristically delivering the ball rapidly

glib or unreliable; deceptive

sound; deep

a deceptive or unscrupulous trick (esp in the phrase pull a fast one)

quickly; rapidly

soundly; deeply

firmly; tightly

in quick succession

in advance of the correct time

in a reckless or dissipated way

(said by the field captain to archers) stop shooting!

to abstain from eating all or certain foods or meals, esp as a religious observance