1. Group of stars: In this context, the closest antonym would be individual star.
2. Group of people or things: Here, the antonym depends on the context. For example, if you're talking about a "constellation of talents," the antonym could be lack of talent.
3. Arrangement or pattern: In this case, the antonym could be disorder, chaos, or randomness.
Ultimately, the best antonym for "constellation" depends on the specific context in which it's being used.
