The phrase "withering attack" refers to a highly critical and destructive verbal or written assault that overwhelms or weakens someone or something. It usually involves harsh criticism or comments that can be damaging and hurtful. Full definition
The 46 - year - old — who has not ruled out a return to the Commons one day - infuriated Mrs May with a series of withering attacks on her via his London newspaper's editorials. (thesun.co.uk)
Those who resisted - including each of the past three governors - have been hit with withering attack ads on television. (nydailynews.com)
The theory that withstands withering attacks from all sides is a better bet than the theory that survives because it is never challenged. (cfact.org)