tininess vs minuteness

tininess and minuteness both are nouns.

Word	Noun	Adjective	Verb	Adverb
tininess	Yes	No	No	No
minuteness	Yes	No	No	No

As nouns, tininess and minuteness are synonyms defined as:

Other synonyms of tininess include diminutiveness, petiteness, weeness.

tininess (noun)	minuteness (noun)
the property of being very small in size	the property of being very small in size
	great precision; painstaking attention to details