loftiness vs tallness

loftiness and tallness both are nouns.

Word	Noun	Adjective	Verb	Adverb
loftiness	Yes	No	No	No
tallness	Yes	No	No	No

As nouns, tallness is a hypernym of loftiness; that is, tallness is a word with a broader meaning than loftiness:

loftiness: the quality of being high or lofty
tallness: the vertical dimension of extension; distance from the base of something to the top

Other hypernyms of loftiness include height.

loftiness (noun)	tallness (noun)
the quality of being high or lofty	the vertical dimension of extension; distance from the base of something to the top
impressiveness in scale or proportion	the property of being taller than average stature