tactfulness vs address

tactfulness and address both are nouns.

Word	Noun	Adjective	Verb	Adverb
tactfulness	Yes	No	No	No
address	Yes	No	Yes	No

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

tactfulness: consideration in dealing with others and avoiding giving offense
address: the ability to do or say what is appropriate for the occasion

Other hyponyms of tactfulness include delicacy, diplomacy, discreetness, finesse, savoir-faire, tactfulness.

tactfulness (noun)	address (noun)
consideration in dealing with others and avoiding giving offense	the ability to do or say what is appropriate for the occasion
Behavior or actions characterized by careful consideration in dealing with others, to avoid giving offense.	the stance assumed by a golfer in preparation for hitting a golf ball
	the act of delivering a formal spoken communication to an audience
	a sign in front of a house or business carrying the conventional form by which its location is described
	written directions for finding some location; written on letters or packages that are to be delivered to that location
	the manner of speaking to another individual
	(computer science) the code that identifies where a piece of information is stored
	the place where a person or organization can be found or communicated with

tactfulness (verb)	address (verb)
	adjust and aim (a golf ball) at in preparation of hitting
	speak to
	speak to someone
	give a speech to
	put an address on (an envelope)
	act on verbally or in some form of artistic expression
	direct a question at someone
	address or apply oneself to something, direct one's efforts towards something, such as a question
	access or locate by address
	greet, as with a prescribed form, title, or name