
- 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. 
- Seasonal affective disorder (SAD) - Symptoms & causes - 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 … 
- 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. 
- 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 … 
- sad Definition & Meaning | Britannica Dictionary- SAD meaning: 1 : not happy feeling or showing grief or unhappiness; 2 : causing a feeling of grief or unhappiness 
- sad - Wiktionary, the free dictionary- Oct 9, 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 … 
- 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 … 
- 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 … 
- SAD Definition & Meaning | Dictionary.com- Sad definition: affected by unhappiness or grief; sorrowful or mournful.. See examples of SAD used in a sentence. 
- Is It Depression or Sadness? Learn the Signs - Healthline- May 27, 2025 · Sadness is a temporary emotion triggered by upsetting events, whereas depression is a persistent mental health condition that affects various aspects of life. See a …