Antonyms of verb unstuff

1 sense of unstuff

Sense 1
unstuff, loosen up -- (cause to become unblocked; "The medicine unstuffed my nose in minutes!")
       Antonym of stuff (Sense 3)
      => stuff, lug, choke up, block -- (obstruct; "My nose is all stuffed"; "Her arteries are blocked")

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

1 sense of unstuff

Sense 1
unstuff, loosen up -- (cause to become unblocked; "The medicine unstuffed my nose in minutes!")
       => free, disengage -- (free or remove obstruction from; "free a path across the cluttered floor")