pestiferous vs pestering

pestiferous and pestering both are adjectives.

Word	Noun	Adjective	Verb	Adverb
pestiferous	No	Yes	No	No
pestering	No	Yes	No	No

As adjectives, pestiferous and pestering are synonyms defined as:

Other synonyms of pestiferous include annoying, bothersome, galling, irritating, nettlesome, pesky, plaguey, plaguy, teasing, vexatious, vexing.

pestiferous (adjective)	pestering (adjective)
causing irritation or annoyance	causing irritation or annoyance
likely to spread and cause an epidemic disease
tending to corrupt or pervert
contaminated with infecting organisms