23 entries under verb topic. ×

4
contaminate(clean, adulterate, purify)
4
dirty(clear, cause, clean)
4
foul(free, dirty)
3
pollute(clean, purify)
2
befoul
2
infect
2
poison(pollute, contaminate)
2
sully(praise, clean)
1
adulterate
1
alloy
1
cloud
0
choke
0
corrupt
0
debase
0
deface
0
deflower
0
deprave
0
deteriorate
0
extend
0
shorten
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APASmart Define. (2016). sterilize thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/sterilize/thesaurus/antonyms
ChicagoSmart Define. 2016. "sterilize thesaurus" https://smartdefine.org/sterilize/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2016, sterilize thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/sterilize/thesaurus/antonyms>.
MLASmart Define. "sterilize thesaurus" 1 March 2016. Web. 26 September 2026. <https://smartdefine.org/sterilize/thesaurus/antonyms>