tightness vs stinginess

tightness and stinginess both are nouns.

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

As nouns, stinginess is a hypernym of tightness; that is, stinginess is a word with a broader meaning than tightness:

tightness: extreme stinginess
stinginess: a lack of generosity; a general unwillingness to part with money

tightness (noun)	stinginess (noun)
lack of movement or room for movement	a lack of generosity; a general unwillingness to part with money
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