As adjectives the difference between problematic and worrisome
is that problematic is posing a problem; difficult to overcome or solve while worrisome is causing worry; perturbing or vexing.
As a noun problematic
is a problem or difficulty in a particular field of study.
problematic
English
Adjective
(head)
posing a problem; difficult to overcome or solve
debatable; open to doubt
unresolved or dubious
doubtful or uncertain in its outcome
Noun
(
en noun)
(chiefly, in the plural) A problem or difficulty in a particular field of study
worrisome
English
Adjective
(
en adjective)
Causing worry; perturbing or vexing.
Said of a person: inclined to worry.