pestilent
UK/'pestilәnt/US
GREC2
Definitions
adj.
Likely to cause death or disease; deadly
致命的，易传播疾病的
adj.
Harmful to morals or society; troublesome
（对道德或社会）有害的；讨厌的
Root Breakdown
Root-derivedpest (plague) + -ent (adj.) = plague-like, deadly. Extends from physical disease to anything that 'infects' society or morals.
Root pest still carries 5 more wordsExample Sentences
- 1.
The swamp gave off a pestilent stench.
- 2.
He called gossip a pestilent habit.