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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. Seasonal Affective Disorder - National Institute of Mental Health …

    SAD is a type of depression characterized by a recurrent seasonal pattern, with symptoms lasting about 4−5 months out of the year. The signs and symptoms of SAD include those associated …

  3. 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.

  4. SAD Synonyms: 263 Similar and Opposite Words - Merriam-Webster

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

  5. Seasonal affective disorder (SAD) - Mayo Clinic

    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 …

  6. 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 …

  7. 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 …

  8. Depression vs. sadness: How to tell the difference

    Nov 25, 2024 · Learn how to recognize depression and sadness, and find out when medical help may be needed. Find out what role medications and counseling play in treatment.

  9. 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.

  10. 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 …