quickest

abrupt active agile brief brisk cursory energetic expeditious hasty hurried immediate instantaneous keen nimble rapid sudden swift

alert express fleet flying going prompt

ASAP a move on accelerated animated breakneck curt double time expeditive harefooted headlong impatient impetuous lively mercurial move it on the double perfunctory posthaste pronto snappy spirited sprightly spry the lead out winged

clumsy delayed idle inactive later lazy leisurely slow sluggish unhurried

ignorant stupid uneducated

able active deft effective keen ready sharp vigorous wise

acute adept knowing prompt savvy slick whiz

adroit all there apt astute bright canny capable clever competent dexterous discerning effectual intelligent nimble-witted on the ball perceptive perspicacious quick on the draw quick on the trigger quick on the uptake quick-witted receptive sharp as a tack shrewd skillful smart as a whip wired

blunt dull idle ignorant impotent inactive ineffective inept lazy slow stupid unintelligent useless weak

clumsy

sluggish uneducated