constriction vs tightness

constriction and tightness both are nouns.

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

As nouns, constriction and tightness are synonyms defined as:

constriction (noun)	tightness (noun)
the action or process of compressing	lack of movement or room for movement
a tight feeling in some part of the body	extreme stinginess
tight or narrow compression	the spatial property of being crowded together
a narrowing that reduces the flow through a channel	a tight feeling in some part of the body
	a state occasioned by scarcity of money and a shortage of credit