PEST'ILENT, adjective [Latin pestilens, from pestis, plague.] 1. Producing the plague, or other malignant, contagious disease; noxious to health and life; as a pestilent air or climate. 2. Mischievous; noxious to morals or society; destructive; in a general sense; as pestilent books. 3. Troublesome; mischievous; making disturbance; corrupt; as a pestilent fellow. Acts 24:5.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI