The ideal Jawline can signify strength, youth, and beauty.
When you look from the front, the line from the tip of the chin out to the outer corner of the Jawline (mandibular angle) is straight, strong, and smooth. The mandibular angle itself is well-defined. When you look from the side, the lines from the chin down to the neck are seamless, and there is no fat or double chin. The jawline has straight lines and sharp chiselled angles, like a fine sculpture.
An ideal female jawline:
Straight
Smooth gentle curves
Softer edges
Ideal male jawline:
Straight
Angled
Wide