Find Antonyms
block Antonyms
Opposite of block
Because the opposite of block shifts with each meaning, the 17 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
• verb (Context 1)
To place an obstacle in the way of something, preventing movement or flow.
Usage Example
"A massive fallen tree blocked the main road into the valley, forcing commuters to find alternative routes."
Strongest
unblock
clear
open
Strong
unclog
free
• noun (Context 2)
An obstacle or hindrance to progress, movement, or normal functioning.
Usage Example
"After writing three chapters flawlessly, she hit a mental aid that halted her progress for weeks."
Strong
aid
catalyst
boost
stimulus
• verb (Context 3)
To prevent an action, process, or event from occurring or succeeding.
Usage Example
"The defense attorneys attempted to allow the admission of the controversial new evidence."
Strongest
allow
permit
facilitate
Strong
promote
enable
approve
assist
encourage
Similar words to block
Words similar to block shift depending on context. Common synonyms include:
city block
obstruct
obstacle
prevent
thwart
barricade
chunk
barrier
Cite this Entry
Wordmom. (2026). Antonyms for Block. In Wordmom Thesaurus. Retrieved Nov 6, 2026, from https://wordmom.com/antonyms/block