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  1. SAD Definition & Meaning - Merriam-Webster

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

  2. Seasonal Affective Disorder - National Institute of Mental ...

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

  3. Seasonal affective disorder (SAD) - Mayo Clinic

    Dec 14, 2021 · If you're like most people with SAD, your symptoms start in the fall and continue into the winter months, sapping your energy and making you feel moody. These symptoms often resolve …

  4. Sadness - Wikipedia

    Sadness is an emotional pain associated with, or characterized by, feelings of disadvantage, loss, despair, grief, helplessness, disappointment and sorrow. An individual experiencing sadness may …

  5. SAD | English meaning - Cambridge Dictionary

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

  6. Sadness: What it feels like, how it can help, and how to cope

    2 days ago · Along with feelings like happiness, anger, and fear, sadness is one of the most basic emotions we feel throughout our lives. While it’s normal, common, and even necessary, sadness can …

  7. SAD definition and meaning | Collins English Dictionary

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

  8. sad - Wiktionary, the free dictionary

    Mar 21, 2026 · 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). …

  9. sad Definition & Meaning | Britannica Dictionary

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

  10. Sad - definition of sad by The Free Dictionary

    1. Showing, expressing, or feeling sorrow or unhappiness: a sad face. 2. Causing sorrow or gloom; depressing: a sad movie; sad news. 3. Deplorable or inadequate; sorry: a sad state of affairs; a sad …