D defs.my
Entry 2 senses Webster, 1913

Unsparing

/ən-spĕr'-ĭng/ · Un·spar·ing · IPA /ənspˈɛrɪŋ/
01 a. Not sparing; not parsimonious; liberal; profuse.
  1. 1.
    Not sparing; not parsimonious; liberal; profuse.
  2. 2.
    Not merciful or forgiving.[R.]