Super-excellent is a positive word used to describe something that is outstanding or exceptional. Antonyms, on the other hand, are words that have opposite meanings. Some antonyms for super-excellent include poor, mediocre, ordinary, average, and substandard. Poor implies a lack of quality or value, while mediocre suggests something of average or moderate quality. Ordinary and average both refer to something that is typical and not exceptional, and substandard indicates that something falls short of the expected standard. While super-excellent is a term used to describe the highest quality, these antonyms highlight the opposite end of the spectrum.