shortness vs length

shortness and length both are nouns.

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

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

Other hypernyms of shortness include duration.

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

shortness: the property of being of short spatial extent
length: the linear extent in space from one end to the other; the longest dimension of something that is fixed in place

shortness (noun)	length (noun)
an abrupt discourteous manner	a section of something that is long and narrow
the property of being shorter than average stature	the linear extent in space from one end to the other; the longest dimension of something that is fixed in place
the property of being of short temporal extent	continuance in time
the property of being of short spatial extent	the property of being the extent of something from beginning to end
the property of being truncated or short	size of the gap between two places
the condition of being short of something