Answer: pestilent

AnswerCrossword Clue
PESTILENTExtremely destructive
PESTILENTLikely to spread disease
PESTILENTPlaguy.
PESTILENTPlaguesome
PESTILENTPlague-stricken
pestilentCausing annoyance; troublesome
pestilentDestructive to life; deadly
pestilentdeadly, producing pestilence
pestilentHarmful or dangerous to morals or public order; pernicious