Antonyms of adj spiny-backed

1 sense of spiny-backed

Sense 1
spiny-backed -- (having the back covered with spines)

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

Similarity of adj spiny-backed

1 sense of spiny-backed

Sense 1
spiny-backed -- (having the back covered with spines)
       => backed (vs. backless) -- (having a back or backing, usually of a specified type)