Loosening Synonyms and Antonyms

Make loose or looser
(Verb)
Antonyms:
  1. stiffening
Make less severe or strict
(Verb)
Synonyms:
  1. relaxing
An occurrence of control or strength weakening
(Noun)
The act of making something less tight
(Noun)
Synonyms:
  1. laxation
Antonyms:
  1. tightening