4
clog(noun, verb, block, hinder)
3
foul
2
block
2
choke
2
congest
1
bar(noun, open, loose)
1
choke off
1
clog up
1
close(open, loose, unblock)
1
dam(verb, block)
1
encumber
1
hamper
1
impede(help, advance, facilitate)
1
obstruct
0
aggravate
0
back up
0
barricade
0
barrier
0
blockade
0
blockage
11 years ago|628 views|share |citing 
APASmart Define. (2015). unclog thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unclog/thesaurus/antonyms
ChicagoSmart Define. 2015. "unclog thesaurus" https://smartdefine.org/unclog/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2015, unclog thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unclog/thesaurus/antonyms>.
MLASmart Define. "unclog thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/unclog/thesaurus/antonyms>