Synonyms for Whittle away:

• n.

  •
  • halve,
  • trim down,
  • top-slice,
  • shrivel,
  • decrease,
  • lower,
  • minimize,
  • reduce,
  • cut back.
  •wear away (noun)
  • wear away.
  •whittle away (noun)
  • whittle down.

• v.

  •undermine (verb)
  • enfeeble,
  • attenuate,
  • undercut,
  • sap,
  • wear,
  • threaten,
  • ruin,
  • erode,
  • mine,
  • wreck,
  • cripple,
  • frustrate,
  • blunt,
  • subvert,
  • soften,
  • disable,
  • sabotage,
  • thwart,
  • dig,
  • hurt,
  • foil,
  • tunnel,
  • debilitate,
  • excavate,
  • corrode,
  • impair.

• Other synonyms:

  •weaken
  • undermine.

Antonyms for Whittle away:

• v.

  • undermine
    construct, assist, fill, strengthen, support, build, encourage, relieve, help, fix, aid, create.