tautness

Noun (2)

1. the physical condition of being stretched or strained“it places great tension on the leg muscles”“he could feel the tenseness of her body”Synonyms: tensiontensitytensenessType of condition, statusKinds tonicity, tonus
2. lack of movement or room for movementSynonyms: tightnessOpposite loosenessType of immovability, immovableness