Information about seasonal affective disorder (SAD), a type of depression, including signs and symptoms, how SAD is diagnosed, causes, and treatment options.

The meaning of SAD is affected with or expressive of grief or unhappiness : downcast. How to use sad in a sentence.

SAD definition: 1. unhappy or sorry: 2. If something looks sad, it looks worse than it should because it is not…. Learn more.

If you describe someone as sad, you do not have any respect for them and think their behaviour or ideas are ridiculous.

SAD meaning: 1 : not happy feeling or showing grief or unhappiness; 2 : causing a feeling of grief or unhappiness

May 13, 2025 · As an adjective, "sad" primarily refers to feeling or showing unhappiness or sorrow. This is its most common usage, applied to both people and situations. It also describes something that …

Nov 25, 2025 · sad (third-person singular simple present sads, present participle sadding, simple past and past participle sadded) (transitive, archaic) To make melancholy; to sadden or grieve (someone). …

feeling unhappiness or grief: to feel sad. expressing or causing sorrow: a sad song. sorry: a sad attempt to make a joke. sad•ly, adv.: She shook her head sadly as she read about the famine. sad (sad), adj., …

Aug 2, 2024 · Learn what experts say about talk therapy, antidepressants, and lifestyle changes that can help improve mood. Depression that arrives or worsens during the fall and winter months may be a …

despondent, unhappy, or sorrowful. He was sad for months after her death. The little child was so terribly sad when her mother left. The sad mourners began to fill the church. causing sorrow or grief. …