niggardliness vs tightness

niggardliness and tightness both are nouns.

Word	Noun	Adjective	Verb	Adverb
niggardliness	Yes	No	No	No
tightness	Yes	No	No	No

As nouns, niggardliness and tightness are synonyms defined as:

Other synonyms of niggardliness include closeness, meanness, minginess, niggardness, parsimoniousness, parsimony, tightfistedness.

niggardliness (noun)	tightness (noun)
extreme stinginess	lack of movement or room for movement
	extreme stinginess
	the spatial property of being crowded together
	a tight feeling in some part of the body
	a state occasioned by scarcity of money and a shortage of credit