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

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

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.

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

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 …

Nov 17, 2025 · 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 …

Oct 31, 2025 · Seasonal affective disorder is more than just the winter blues. It is a form of depression linked to changing seasons. Two psychiatrists share more.

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 …

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