shortness vs abruptness

shortness and abruptness both are nouns.

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

As nouns, shortness and abruptness are synonyms defined as:

Other synonyms of shortness include brusqueness, curtness, gruffness.

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