Antonyms of adj stiff-backed

1 sense of stiff-backed

Sense 1
stiff-backed -- (having a stiff back; "the guards stood stiff-backed and unsmiling")

INDIRECT (VIA backed) -> backless -- (lacking a back; "a stool is a backless and armless seat")

Similarity of adj stiff-backed

1 sense of stiff-backed

Sense 1
stiff-backed -- (having a stiff back; "the guards stood stiff-backed and unsmiling")
       => backed (vs. backless) -- (having a back or backing, usually of a specified type)