smallness vs minimality

smallness and minimality both are nouns.

Word	Noun	Adjective	Verb	Adverb
smallness	Yes	No	No	No
minimality	Yes	No	No	No

As nouns, minimality is a hyponym of smallness; that is, minimality is a word with a more specific, narrower meaning than smallness:

smallness: the property of having a relatively small size
minimality: The state of being the smallest possible amount, quantity, or degree.

smallness (noun)	minimality (noun)
the property of having a relatively small size	The state of being the smallest possible amount, quantity, or degree.
lack of generosity in trifling matters
the property of being a relatively small amount
the property of having relatively little strength or vigor
The quality of being minor in influence, power, or rank.