Antonyms of noun extensor

1 sense of extensor

Sense 1
extensor muscle, extensor -- (a skeletal muscle whose contraction extends or stretches a body part)
       Antonym of flexor (Sense 1)
      => flexor muscle, flexor -- (a skeletal muscle whose contraction bends a joint)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun extensor

1 sense of extensor

Sense 1
extensor muscle, extensor -- (a skeletal muscle whose contraction extends or stretches a body part)
       => skeletal muscle, striated muscle -- (a muscle that is connected at either or both ends to a bone and so move parts of the skeleton; a muscle that is characterized by transverse stripes)