| a. | 1. | Pest-bearing; pestilential; noxious to health; malignant; infectious; contagious; |
| 2. | Noxious to peace, to morals, or to society; vicious; hurtful; destructive; |
| Adj. | 1. | pestiferous - contaminated with infecting organisms; "dirty wounds"; "obliged to go into infected rooms"- Jane Austen |
| 2. | pestiferous - likely to spread and cause an epidemic disease; "a pestilential malignancy in the air"- Jonathan Swift; "plaguey fevers" | |
| 3. | pestiferous - tending to corrupt or pervert Synonyms: corruptive, perversive | |
| 4. | pestiferous - causing irritation or annoyance; "tapping an annoying rhythm on his glass with his fork"; "aircraft noise is particularly bothersome near the airport"; "found it galling to have to ask permission"; "an irritating delay"; "nettlesome paperwork"; "a pesky mosquito"; "swarms of pestering gnats"; "a plaguey newfangled safety catch"; "a teasing and persistent thought annoyed him"; "a vexatious child"; "it is vexing to have to admit you are wrong" Synonyms: annoying, bothersome, galling, irritating, nettlesome, pesky, pestering, plaguy, vexatious, vexing, plaguey, teasing |