Acronyms dictionary SAD What does SAD mean? SAD is an acronym for Seasonal Affective Disorder, a type of depression most often exacerbated by the fall and winter seasons and their darker days. Related words: hello darkness, my old friend loudly crying face emoji Debbie Downer Examples of SAD Most people experience SAD during the winter. Less commonly, some people find they experience SAD in reverse – with depressive symptoms occurring in summer. Mind.org.uk After the age of 50, the risk of SAD starts to decline. Researchers aren’t yet sure why. HereToHelp.bc.ca The reduced level of sunlight in fall and winter may cause winter-onset SAD. MayoClinic.org SEE MORE EXAMPLES Who uses SAD? Meme Collection Just Added shelfie, ACAB, yeet, Karen, BIPOC Note This is not meant to be a formal definition of SAD like most terms we define on Dictionary.com, but is rather an informal word summary that hopefully touches upon the key aspects of the meaning and usage of SAD that will help our users expand their word mastery.