Diagonal

She felt a sharp pain in her diagonal abdominal muscle while doing sit-ups.

The yoga instructor demonstrated a pose that targeted the diagonal muscles in the abdomen.

The conductor directed the orchestra to play the crescendo in a diagonal pattern, starting from the woodwinds and moving to the brass section.

The hairdresser gave her a trendy diagonal fringe.

The pianist played a complex piece with rapid diagonal hand movements.

The gymnast executed a perfect diagonal flip during her floor routine, impressing the judges.