Waning Synonyms and Antonyms

A gradual decrease in magnitude or extent
(Noun)
Antonyms:
  1. waxing
(of the Moon) pertaining to the period during which the visible surface of the moon decreases
(Adjective)
Synonyms:
  1. abating
  2. declinatory
  3. decrescent
  4. ebbing
  5. lessening
Antonyms:
  1. waxing