Antonyms of verb zip_up

1 sense of zip up

Sense 1
zip up, zipper, zip -- (close with a zipper; "Zip up your jacket--it's cold")
       Antonym of unzip (Sense 1)
      => unzip -- (open the zipper of; "unzip the bag")

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

1 sense of zip up

Sense 1
zip up, zipper, zip -- (close with a zipper; "Zip up your jacket--it's cold")
       => fasten, fix, secure -- (cause to be firmly attached; "fasten the lock onto the door"; "she fixed her gaze on the man")