list of synonyms of word pestiferous

• contaminated
• dirty
• septic (similar term)
• infected (similar term)

• pestilent
• pestilential
• plaguey
• epidemic (similar term)

• corruptive
• perversive
• evil (similar term)

• annoying
• bothersome
• galling
• irritating
• nettlesome
• pesky
• pestering
• plaguy
• plaguey
• teasing
• vexatious
• vexing
• disagreeable (similar term)