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 meaning: 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

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

The word sad has been part of the English language for many centuries but did not mean "unhappy" until the 1300s. In Old English, "sad" meant "satisfied." Later, it came to mean "tired or weary of."

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 …

SAD definition: affected by unhappiness or grief; sorrowful or mournful. See examples of sad used in a sentence.

1 day ago · Beat the winter blues – and even summer SAD – with expert tips on light therapy, diet and mindfulness for better seasonal mental health.