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

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

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 …

Nov 25, 2025 · sad (comparative sadder or more sad, superlative saddest or most sad) (heading) Emotionally negative. She gets sad when he's away. c. 1590–1592 (date written), William …

Seasonal affective disorder (SAD) is a mood disorder subset in which people who typically have normal mental health throughout most of the year exhibit depressive symptoms at the same …

Dec 19, 2025 · For some people, the start of winter can bring the onset of depression, fatigue, and agitation. These symptoms can be severe enough to interfere with day-to-day life. This …

Definition of sad adjective in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.