Antonyms of adj protractible

1 sense of protractible

Sense 1
protractile, protractible -- (able to be extended; "protractile muscle")

INDIRECT (VIA extensile) -> nonextensile, inextensible, nonprotractile -- (not extensile)

Similarity of adj protractible

1 sense of protractible

Sense 1
protractile, protractible -- (able to be extended; "protractile muscle")
       => extensile (vs. nonextensile), extensible -- (capable of being protruded or stretched or opened out; "an extensile tongue"; "an extensible measuring rule")