‘冷哼’ is a compound noun or interjection that literally combines ‘cold’ (冷) and ‘snort’ (哼) to express a sharp, dismissive, or contemptuous snort—often made through the nose without speaking. It conveys strong emotional distance, scorn, or quiet indignation, typically in response to something perceived as foolish, arrogant, or unworthy of serious engagement. Unlike a simple ‘hēng’, which can indicate mild disagreement or hesitation, ‘lěng hēng’ carries deliberate coldness and judgment.

This expression is commonly used in dialogue—especially in fiction, drama, or everyday speech—to signal unspoken disapproval or superiority. It’s often accompanied by body language like a raised eyebrow, averted gaze, or folded arms. While it functions grammatically as a noun (e.g., ‘发出一声冷哼’), it frequently appears alone as an interjection in narratives or spoken exchanges, standing in for a full sentence of disdain.