pestiferous

/pɛˈstɪfərəs/

Other forms: pestiferously

Definitions of pestiferous

1. adjective

   contaminated with infecting organisms
   synonyms: dirty

   infected, septic

   containing or resulting from disease-causing organisms
2. adjective

   likely to spread and cause an epidemic disease
   synonyms: pestilent, pestilential, plaguey

   epidemic

   (especially of medicine) of disease or anything resembling a disease; attacking or affecting many individuals in a community or a population simultaneously
3. adjective

   tending to corrupt or pervert
   synonyms: corruptive, perversive

   evil

   morally bad or wrong
4. adjective

   causing irritation or annoyance
   synonyms: annoying, bothersome, galling, grating, irritating, nettlesome, pesky, pestering, plaguey, plaguy, teasing, vexatious, vexing

   disagreeable

   not to your liking