28 entries under adjective topic. ×

10
infectious(catching, poisonous, spreading, transferable)
5
contagious
5
morbific
5
poisonous
4
communicable
4
pathogenic
4
virulent(poisonous, lethal)
3
deadly
3
pestiferous
3
venomous
2
contaminative
2
miasmic(catching, toxic, spreading, transferable)
1
corruptive(noxious, toxic, venomous)
1
pestilent(unhealthy, unwholesome, catching, virulent)
1
pestilential
1
toxicant
1
transmittable(taking, catching, toxic, spreading)
0
acerbic
0
acrid
0
adhesive
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APASmart Define. (2015). infective thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/infective/thesaurus/synonyms
ChicagoSmart Define. 2015. "infective thesaurus" https://smartdefine.org/infective/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, infective thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/infective/thesaurus/synonyms>.
MLASmart Define. "infective thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/infective/thesaurus/synonyms>