Antonyms of adj blockheaded
1 sense of blockheaded
Sense 1
blockheaded, boneheaded, duncical, duncish, fatheaded, loggerheaded, thick, thickheaded, thick-skulled, wooden-headed -- ((used informally) stupid)
INDIRECT (VIA stupid) -> smart -- (showing mental alertness and calculation and resourcefulness)
Similarity of adj blockheaded
1 sense of blockheaded
Sense 1
blockheaded, boneheaded, duncical, duncish, fatheaded, loggerheaded, thick, thickheaded, thick-skulled, wooden-headed -- ((used informally) stupid)
=> stupid (vs. smart) -- (lacking or marked by lack of intellectual acuity)