Calamitous is a synonym of distressful.
As adjectives the difference between calamitous and distressful
is that calamitous is concerning or involving calamity, disastrous while distressful is causing or having distress, strain, or anxiety.
calamitous
English
Adjective
(
en adjective)
Concerning or involving calamity, disastrous.
:The city was struck by a calamitous cyclone.
Synonyms
* destructive
* fatal
distressful
English
Alternative forms
* distressfull (archaic)
Adjective
(
en adjective)
Causing or having distress, strain, or anxiety.