Distressing is a related term of unbearable.
As adjectives the difference between distressing and unbearable
is that distressing is causing distress; upsetting while unbearable is so unpleasant or painful as to be unendurable.
As a verb distressing
is .
unbearable
English
Adjective
(
en adjective)
so unpleasant or painful as to be unendurable
Synonyms
* insufferable
* unsupportable