scantiness vs shortness

scantiness and shortness both are nouns.

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

As nouns, shortness is a hypernym of scantiness; that is, shortness is a word with a broader meaning than scantiness:

scantiness: Of a garment, the property of being very small, light, or revealing.
shortness: the property of being of short spatial extent

scantiness (noun)	shortness (noun)
the quality of being meager	an abrupt discourteous manner
Of a garment, the property of being very small, light, or revealing.	the property of being shorter than average stature
	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