slouch; stoop; bending forward
Describes a posture where the upper body is bent forward, often from the waist. Can be used for a habitual slouch or a momentary forward lean.
彼はいつも前かがみで歩く。
He always walks with a slouch.
前かがみにならないように背筋を伸ばしてください。
Please straighten your back so you don't stoop forward.