Bigonial Width
The width of the jaw measured between the two gonial angles — a major driver of a square, masculine lower face.
Bigonial width is the distance between the left and right gonial angles (the corners of the jaw). A wider bigonial width relative to the bizygomatic (cheekbone) width creates the square, masculine lower-face look often associated with Chad-tier ratings; a narrow bigonial width makes the face taper to a point and can look weaker or more V-shaped.
This is a pure bone measurement — masseter (chewing muscle) development can add some width on top of it, but the underlying skeletal width doesn't change in adulthood without surgery.
What is ideal bigonial width?
Wide relative to bizygomatic width for a masculine square jaw; narrower widths create a softer, more tapered look.
Can you widen your jaw naturally?
Only marginally, via masseter hypertrophy from chewing/training. The bone width itself is fixed.
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