tightness
tight-ness
noun
A sensation of uncomfortable pressure or constriction, especially in a body part.
"He felt a tightness in his chest."
noun
The state of being firmly stretched, constricted, or not loose.
"The tightness of the knot held it secure."
Thesaurus
Synonyms: constriction, stringency, tautness, denseness, density, compactness, concentration, niggardliness, meanness, minginess, parsimony, tightfistedness
Antonyms: dispersion, distribution, looseness, play