unexpected and sudden

happening suddenly and unexpectedly

doing things; able to do things; in the habit of doing things

having movement

an active, profitable business; an act of leaving

active

with the head first; thoughtless(ly) and hurried(ly)

dangerous, reckless

done, acting, quickly and without enough thought or care

acting without thinking

the hobby, sport, profession of racing horses, cars etc

speeding

happening unexpectedly, quickly, without warning

unexpected; happening quickly

of a tide or tides

gushing, abounding