4
obstruct
3
impede
3
jam
3
obturate
2
block
2
occlude
1
close up
11 years ago|57 views|share |citing 
APASmart Define. (2015). clog up thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/clog_up/thesaurus/broader
ChicagoSmart Define. 2015. "clog up thesaurus" https://smartdefine.org/clog_up/thesaurus/broader (accessed September 20, 2026).
HarvardSmart Define 2015, clog up thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/clog_up/thesaurus/broader>.
MLASmart Define. "clog up thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/clog_up/thesaurus/broader>