Pestilential
Definition 1 of 3

Disease Connection
Use 'pestilential' to describe what could cause outbreaks or spread disease.

The stagnant water was a pestilential breeding ground for mosquitoes.
Negative Connotation
'Pestilential' often suggests negative, unhealthy living conditions or environments.

The slums were known for their pestilential air and cramped spaces.
Compare with
contagiousepidemicinfectiouslethalmalignantpoisonoustoxicvirulent
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