Antonyms of verb uncoil

1 sense of uncoil

Sense 1
uncoil -- (unwind or untwist)
       Antonym of coil (Sense 3)
      => coil, loop, curl -- (wind around something in coils or loops)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb uncoil

1 sense of uncoil

Sense 1
uncoil -- (unwind or untwist)
       => unwind, disentangle -- (separate the tangles of)

Antonyms of adj uncoiled

1 sense of uncoiled

Sense 1
uncoiled (vs. coiled), straight -- (no longer coiled)

coiled (vs. uncoiled) -- (curled or wound (especially in concentric rings or spirals); "a coiled snake ready to strike"; "the rope lay coiled on the deck")
        => coiling, helical, spiral, spiraling, volute, voluted, whorled, turbinate -- (in the shape of a coil)
        => convolute, convoluted -- (rolled longitudinally upon itself; "a convolute petal")
        => involute -- ((of some shells) closely coiled so that the axis is obscured)
        => involute, rolled -- (especially of petals or leaves in bud; having margins rolled inward)
        => wound -- (put in a coil)

Similarity of adj uncoiled

1 sense of uncoiled

Sense 1
uncoiled (vs. coiled), straight -- (no longer coiled)
       => uncurled -- (not curled; "lay uncurled on the bed")