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  1. SAD Definition & Meaning - Merriam-Webster

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

  2. SAD Synonyms: 263 Similar and Opposite Words | Merriam ...

    Synonyms for SAD: unhappy, heartbroken, depressed, miserable, sorry, bad, melancholy, upset; Antonyms of SAD: happy, glad, joyous, joyful, cheerful, cheery, jubilant, ecstatic

  3. Seasonal Affective Disorder - National Institute of ... - NIMH

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

  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 …

  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. SAD definition and meaning | Collins English Dictionary

    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 …

  7. sad - Wiktionary, the free dictionary

    Oct 31, 2025 · Woad, or wade, is used by the dyers to lay the foundation of many colours, especially all sad colours.

  8. sad Definition & Meaning | Britannica Dictionary

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

  9. Sad: Definition, Meaning, and Examples sad - usdictionary.com

    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 …

  10. sad - WordReference.com Dictionary of English

    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. …