Antonyms of adj square-built

1 sense of square-built

Sense 1
square-built -- (broad and solidly built)

INDIRECT (VIA robust) -> frail -- (physically weak; "an invalid's frail body")

Similarity of adj square-built

1 sense of square-built

Sense 1
square-built -- (broad and solidly built)
       => robust (vs. frail) -- (sturdy and strong in form, constitution, or construction; "a robust body"; "a robust perennial")