74 entries under adjective topic. ×

18
prophylactic(allow, alert, careful, hindrance)
15
preventative(noun, allow, curb, restraint)
13
restrictive(warning, obstructive)
11
defensive(alert, careful, attentive, watchful)
11
protective(allow, watchful, opposing, obstructive)
8
contraceptive(noun, prophylactic)
8
deterrent(noun, allow, curb, restraint)
8
precautionary
6
medical(healing, remedial, therapeutic, medicinal)
6
counteractive(noun, relief)
6
preclusive
6
prohibitive
6
watchful(alert, careful, attentive, opposing)
5
anticipatory
5
cautionary
5
hindering
5
obstructive
5
preemptive
5
prohibitory
4
impeding
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APASmart Define. (2015). preventive thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/preventive/thesaurus/synonyms
ChicagoSmart Define. 2015. "preventive thesaurus" https://smartdefine.org/preventive/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, preventive thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/preventive/thesaurus/synonyms>.
MLASmart Define. "preventive thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/preventive/thesaurus/synonyms>