Antonyms of adj doltish
1 sense of doltish
Sense 1
cloddish, doltish -- (heavy and dull and stupid)
INDIRECT (VIA stupid) -> smart -- (showing mental alertness and calculation and resourcefulness)
Similarity of adj doltish
1 sense of doltish
Sense 1
cloddish, doltish -- (heavy and dull and stupid)
=> stupid (vs. smart) -- (lacking or marked by lack of intellectual acuity)