In a quick-witted manner.

Alternative spelling of quick-frozen

A pyrotechnic fuse consisting of a cotton string, coated with black powder, confined in a paper tube.

(obsolete) An actor who is able to learn their lines in a short amount of time. / One who is capable of learning at a fast pace; a fast learner.

Alternative form of quick-and-dirty

(idiomatic) Done or constructed in a hasty, approximate, temporarily adequate manner, but not exact, fully formed, or reliable for a long period of time.

(US, slang) An inexpensive, inelegant eatery; a greasy spoon. / (idiomatic) A quick, temporary fix, estimate, or the like.

(idiomatic, simile) Extremely quick.

(idiomatic, simile) Extremely quickly.

Alternative spelling of quicksmart