before-and-after adjective 1noun 1forms 2 adjective1 •Describing a pair of images showing the difference made by a specified treatment noun1 •A before-and-after pair of images.But instead I head to where Betty sits in front of the TV, engrossed in an infomercial for acne medication. She smiles at me when I sit down. “Look at those before-and-afters! Isn’t that amazing?” — 2015 formsbefore and afters · before-and-afters