Antonyms of adj thornless

1 sense of thornless

Sense 1
thornless, spineless -- (lacking thorns)

INDIRECT (VIA unarmed) -> armed -- ((used of plants and animals) furnished with bristles and thorns)

Similarity of adj thornless

1 sense of thornless

Sense 1
thornless, spineless -- (lacking thorns)
       => unarmed (vs. armed) -- ((used of plants or animals) lacking barbs or stings or thorns)