relaxation
noun
[ riːlakˈseɪʃ(ə)n ]
• the state of being free from tension and anxiety.
• "I guided my patient into a state of hypnotic relaxation"
• the action of making a rule or restriction less strict.
• "relaxation of censorship rules"
Similar:
moderation,
modification,
easing,
loosening,
lessening,
lightening,
slackening,
alleviation,
mitigation,
qualification,
dilution,
weakening,
diminution,
reduction,
letting up,
Opposite:
tightening up,
• the restoration of equilibrium following disturbance.