Antonyms of adj witless
1 sense of witless
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 witless
1 sense of witless
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)