One of the mysteries of the English language finally explained.
alert, astute, perceptive, quick, quick-thinking, sharp-witted, sharp, shrewd, penetrating, discerning, perspicacious
wide awake, ready, quick off the mark, observant
intelligent, bright, clever, gifted, able, brainy, brilliant
informal smart, on the ball, on one's toes, quick on the uptake, genius
North American informal whip-smart
In this article we explore how to impress employers with a spot-on CV.