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

Dec 14, 2021 · Seasonal affective disorder (SAD) is a type of depression that's related to changes in seasons — SAD begins and ends at about the same times every year. If you're like most …

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 are sad, you feel unhappy, usually because something has happened that you do not like. The relationship had been important to me and its loss left me feeling sad and empty. I'm sad …

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 …

4 days ago · 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 …

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

Nov 6, 2025 · Norman Rosenthal uses light in his home to help with depression related to seasonal affective disorder (SAD). Spoiler alert: He has a lot of light boxes.

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. …