Antonyms of adj double-jointed

1 sense of double-jointed

Sense 1
double-jointed -- (having unusually flexible joints especially of the limbs or fingers)

INDIRECT (VIA flexible) -> inflexible -- (resistant to being bent; "an inflexible iron bar"; "an inflexible knife blade";)

Similarity of adj double-jointed

1 sense of double-jointed

Sense 1
double-jointed -- (having unusually flexible joints especially of the limbs or fingers)
       => flexible (vs. inflexible), flexile -- (able to flex; able to bend easily; "slim flexible birches")