Most jazzed means excited or enthusiastic about something. The antonyms for this phrase include a variety of words that describe the opposite feeling. Some examples of words that may be considered antonyms for "most jazzed" include depressed, disinterested, unenthusiastic, indifferent, apathetic, and bored. When someone is not jazzed about something, they may feel like they are lacking energy or motivation. They might not be interested in pursuing a particular activity or topic, and may not feel engaged or invested in it. In contrast, when someone is jazzed, they feel energized, positive, and ready to take on a challenge or opportunity.