loosening
1. [ noun ] an occurrence of control or strength weakening
Synonyms: slackening relaxation
Examples:

"the relaxation of requirements": "the loosening of his grip" "the slackening of the wind"

Related terms: weakening thaw loosen slack slacken
2. [ noun ] the act of making something less tight
Synonyms: laxation
Related terms: tightening alteration untying loosen
Similar spelling:   logomania
  lessening