অর্থ : Exceedingly harmful.
সমার্থক : baneful, deadly, pernicious
অর্থ : Likely to spread and cause an epidemic disease.
উদাহরণ :
A pestilential malignancy in the air.
Plaguey fevers.
সমার্থক : pestiferous, pestilential, plaguey
Pestilent meaning in Bengali (Bangla).