As a noun quickener
is one who, or that which, quickens.
As a verb quickened is
As a verb quickened
As an adjective unquickened is
As verbs the difference between quickened and accelerate
is that quickened
) while accelerate
is to cause to move faster; to quicken the motion of; to add to the speed of.
As a adjective accelerate is
(rare) accelerated; quickened; hastened; hurried.