温柔 (wēn róu) describes a person's soft, kind, and tender demeanor — it's the go-to word for a gentle personality or affectionate manner. It overlaps with 温和 (wēn hé), but 温和 is broader, also used for climate, policies, or a mild voice; 温柔 is more intimate and emotional, often for romantic or caring contexts. 柔软 (róu ruǎn) is only about physical softness (texture, fabric), never personality.