Smart as a whip and Sharp-witted

Smart as a whip adjective - Having or marked by unusual and impressive intelligence.

Sharp-witted and smart as a whip are semantically related. In some cases you can use "Sharp-witted" instead an adjective phrase "Smart as a whip".

Sharp-witted adjective - Having or showing a practical cleverness or judgment.

Smart as a whip and sharp-witted are semantically related. Sometimes you can use "Smart as a whip" instead an adjective phrase "Sharp-witted".