Worrisome is a related term of unbearable.
As adjectives the difference between worrisome and unbearable
is that worrisome is causing worry; perturbing or vexing while unbearable is so unpleasant or painful as to be unendurable.
worrisome
English
Adjective
(
en adjective)
Causing worry; perturbing or vexing.
Said of a person: inclined to worry.
unbearable
English
Adjective
(
en adjective)
so unpleasant or painful as to be unendurable
Synonyms
* insufferable
* unsupportable