(figurative) Having a harmful moral effect (especially one that is believed to spread in the manner of pestilence).
(figurative) Causing irritation or annoyance.
1899, Joseph Conrad, Heart of Darkness in Blackwood’s Edinburgh Magazine, Volume 165, March 1899, Chapter 2, p. 480,
[…] a species of wandering trader—a pestilential fellow, snapping ivory from the natives.
Mac + Safari
iPhone + iPad
Google Chrome
Mozilla Firefox
Opera
Microsoft Edge