62 entries under noun topic. ×

13
anticatalyst(hinder, impede, interrupt)
10
prevention(block, impede, inhibitor)
10
dead-catalyst(block, hinder, anticatalyst)
9
obstruction(hinder, impede, interrupt)
8
block(hinder, impede, interrupt)
6
blockage(block, impede, inhibitor)
6
obstacle(hinder, impede, interrupt)
6
preventer(block, impede, inhibitor, enzyme)
4
deterrent(help, restraint, impediment)
4
interference(hinder, impede, interrupt)
3
impediment(hinder, impede, interrupt)
3
dampener(block, hinder, defect)
3
dead catalyst(expression, block, hinder, anticatalyst)
3
disincentive(help, block, hinder, defect)
2
infirmity(block, hinder, defect)
2
spent catalyst(block, hinder, anticatalyst)
1
annoyance(hinder, impede, interrupt)
1
assignation(block, hinder, defect)
1
bar(hinder, impede, interrupt)
1
blocking agent(expression, block, impede, inhibitor)
11 years ago|4.6k views|share |citing 
APASmart Define. (2015). catalyst thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/catalyst/thesaurus/antonyms
ChicagoSmart Define. 2015. "catalyst thesaurus" https://smartdefine.org/catalyst/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2015, catalyst thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/catalyst/thesaurus/antonyms>.
MLASmart Define. "catalyst thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/catalyst/thesaurus/antonyms>