Definitions for: Waning

[n] a gradual decrease in magnitude or extent; "the waning of his enthusiasm was obvious"; "the waxing and waning of the moon"
[adj] (of the moon) "after full moon comes the waning moon"

Webster (1913) Definition: Wan"ing, n.
The act or process of waning, or decreasing.

This earthly moon, the Church, hath fulls and wanings,
and sometimes her eclipses. --Bp. Hall.

Antonyms: waxing

See Also: decrease, drop-off, lessening