Antonyms of adj spiral-shelled

1 sense of spiral-shelled

Sense 1
spiral-shelled -- (having a shell that forms a spiral)

INDIRECT (VIA shelled) -> unshelled, shell-less -- (of animals or fruits that have no shell)

Similarity of adj spiral-shelled

1 sense of spiral-shelled

Sense 1
spiral-shelled -- (having a shell that forms a spiral)
       => shelled (vs. unshelled) -- (of animals or fruits that have a shell)