a acting or moving or capable of acting or moving quickly
a (used of timepieces) indicating a time ahead of or later than the correct time
a at a rapid tempo
s (of surfaces) conducive to rapid speeds
s resistant to destruction or fading
s unrestrained by convention or morality
s hurried and brief
s securely fixed in place
s unwavering in devotion to friend or vow or cause
s (of a photographic lens or emulsion) causing a shortening of exposure time
r most quickly