whittling away (verb) undermine: weaken
Sinonime: attenuate,
blunt, clip one's wings, corrode,
cripple,
debilitate,
dig, dig out, disable, eat away, enfeeble,
erode, excavate,
foil,
frustrate, hollow out,
hurt,
impair, knock the bottom out of,
mine, poke full of holes,
ruin,
sabotage, sandbag,
sap,
soften,
subvert,
threaten,
thwart, torpedo, tunnel, undercut,
wear, whittle away,
wreckAntonime: strengthen