noun. a tight-fitting garment of stretchy material that covers the body from the shoulders to the thighs (and may have long sleeves or legs reaching down to the ankles); worn by ballet dancers and acrobats for practice or performance.
1. Noun, singular or mass Pull the mask over your head and tuck the bottom into the neck of the unitard. 2. Adjective Then you can either pair a tank top with boxing shorts or go the extra mile with just a unitard and belt.