Antonyms of adj nitwitted

1 sense of nitwitted

Sense 1
nitwitted, senseless, soft-witted, witless -- ((of especially persons) lacking sense or understanding or judgment)

INDIRECT (VIA stupid) -> smart -- (showing mental alertness and calculation and resourcefulness)

Similarity of adj nitwitted

1 sense of nitwitted

Sense 1
nitwitted, senseless, soft-witted, witless -- ((of especially persons) lacking sense or understanding or judgment)
       => stupid (vs. smart) -- (lacking or marked by lack of intellectual acuity)