Antonyms of verb unblock

1 of 3 senses of unblock

Sense 3
unblock, unfreeze, free, release -- (make (assets) available; "release the holdings in the dictator's bank account")
       Antonym of block (Sense 16)
      => freeze, block, immobilize, immobilise -- (prohibit the conversion or use of (assets); "Blocked funds"; "Freeze the assets of this hostile government")

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

3 senses of unblock

Sense 1
unblock -- (clear or remove an obstruction from; "the procedure unblocked his arteries")
       => unstuff, loosen up -- (cause to become unblocked; "The medicine unstuffed my nose in minutes!")

Sense 2
unblock -- (play the cards of (a suit) so that the last trick on which a hand can follow suit will be taken by a higher card in the hand of a partner who has the remaining cards of a combined holding)
       => play -- (participate in games or sport; "We played hockey all afternoon"; "play cards"; "Pele played for the Brazilian teams in many important matches")

Sense 3
unblock, unfreeze, free, release -- (make (assets) available; "release the holdings in the dictator's bank account")
       => issue, supply -- (circulate or distribute or equip with; "issue a new uniform to the children"; "supply blankets for the beds")