troubling vs perturbing

troubling and perturbing both are adjectives.

Word	Noun	Adjective	Verb	Adverb
troubling	No	Yes	No	No
perturbing	No	Yes	No	No

As adjectives, troubling and perturbing are synonyms defined as:

Other synonyms of troubling include distressful, distressing, disturbing, worrisome, worrying.

troubling (adjective)	perturbing (adjective)
causing distress or worry or anxiety	causing distress or worry or anxiety