noun

tightness

Translation

tightness, constriction, tension

I felt a tightness in my chest.

The tightness of the knot was impressive.

The tightness of the schedule is a problem.

((tightness in sth.)) a feeling of being constricted in a part of the body I felt a tightness in my chest.

((the tightness of sth.)) the quality of being firm, strict, or difficult to move The tightness of the schedule is a problem.

Synonyms: tension, constriction, firmness; Antonyms: looseness, slackness

From the adjective 'tight' plus the noun-forming suffix '-ness', indicating a state or quality.

Think of the state (-ness) of something being 'tight'. This can be physical, like a tight muscle, or abstract, like a tight schedule.