1. (

• waning

) a gradual decrease in magnitude or extent; "the waning of his enthusiasm was obvious"; "the waxing and waning of the moon" ;

1. (

• decline ,
• go_down ,
• wane ,

) grow smaller; "Interest in the project waned" ;

2. (

• wane

) become smaller; "Interest in his novels waned" ;

3. (

• wane ,

) decrease in phase; "the moon is waning" ;

1. (

• waning

) (of the Moon) pertaining to the period during which the visible surface of the moon decreases; "after full moon comes the waning moon" ;