firm stance; tough attitude
Describes a person's or organization's uncompromising, resolute posture in negotiations, conflicts, or difficult situations. Often used in political, business, or interpersonal contexts.
組合は会社に対して強腰の姿勢を崩さなかった。
The union maintained a firm stance toward the company.
彼
His tough attitude made the negotiations difficult.
強腰 describes a firm, assertive stance, the direct opposite of the yielding, timid stance described by 弱腰.
Compound of 強 (つよ, 'strong') and 腰 (こし, 'hips/lower back'), literally 'strong hips', metaphorically referring to a stable, unyielding posture.