A brute randomly slapped a 32-year-old woman in the face as she walked outside a Bronx laundromat, new video released by cops shows. 

The victim had just walked out of the Clean Rite Center on Southern Boulevard near Jennings Street just before 10:30 a.m. Nov. 28 when the attacker — who emerged from the 174th Street 2 and 5 subway station — suddenly struck her for no apparent reason, police said. 

Surveillance video released late Tuesday shows the suspect walking up to the victim and hitting her with the back of his hand. 

The woman was taken to Lincoln Medical Center in stable condition.

Her attacker, who fled on foot, remained at large Wednesday.

He is described as about 25 to 30 years old, about 5 feet 9 or 10, and 180 pounds. 

He was last seen carrying a handbag and wearing a blue sweatshirt and gray sweatpants, cops said.