overbust adjective 1noun 1forms 1 adjective1 •Above the bust.An overbust corset encloses the torso, extending from just under the arms to the hips. noun1 •The circumference of a woman's chest, measured above the breasts.You can measure your underbust and overbust to get an idea of bra size, but it's still just a guideline. — 2015 formsoverbusts
