Appalling is a related term of calamitous.
As adjectives the difference between appalling and calamitous
is that appalling is horrifying and astonishing while calamitous is concerning or involving calamity, disastrous.
As a verb appalling
is .
appalling
English
Verb
(head)
Adjective
(
en adjective)
Horrifying and astonishing.
- That was an appalling waste of money.
Usage notes
* Not to be confused with appealing.
Synonyms
* awful, grotesque, horrid, hideous, terrible
Derived terms
* appallingly
calamitous
English
Adjective
(
en adjective)
Concerning or involving calamity, disastrous.
:The city was struck by a calamitous cyclone.
Synonyms
* destructive
* fatal