The word "super-abundant" refers to an excessive amount or an overabundance of something. Antonyms for this word would include words like "scarce," "meager," "sparse," "uncommon," "inadequate," "limited," "scant," and "deficient." These words convey the opposite meaning of "super-abundant" and suggest that something is in short supply or insufficient. When describing something that is scarce or meager, we can use words like "rare," "uncommon," or "infrequent." On the other hand, if we want to talk about something that is simply not sufficient or inadequate, we can use words like "insufficient," "imperfect," or "inadequate.