loyalty vs trueness

loyalty and trueness both are nouns.

Word	Noun	Adjective	Verb	Adverb
loyalty	Yes	No	No	No
trueness	Yes	No	No	No

As nouns, loyalty and trueness are synonyms defined as:

loyalty (noun)	trueness (noun)
the act of binding yourself (intellectually or emotionally) to a course of action	exactness of adjustment
the quality of being loyal	the quality of being loyal
feelings of allegiance	conformity to reality or actuality