abruptness vs shortness

abruptness and shortness both are nouns.

Word	Noun	Adjective	Verb	Adverb
abruptness	Yes	No	No	No
shortness	Yes	No	No	No

As nouns, abruptness and shortness are synonyms defined as:

Other synonyms of abruptness include brusqueness, curtness, gruffness.

abruptness (noun)	shortness (noun)
the quality of happening with headlong haste or without warning	an abrupt discourteous manner
the property possessed by a slope that is very steep	the property of being shorter than average stature
an abrupt discourteous manner	the property of being of short temporal extent
	the property of being of short spatial extent
	the property of being truncated or short
	the condition of being short of something