General Adjectives:
* Mysterious: This is a common description, as their appearances, origins, and powers are shrouded in secrecy.
* Magical: They possess supernatural abilities and can manipulate time and space.
* Eccentric: Their personalities and mannerisms are unconventional and unusual.
* Wise: They offer guidance and insight to Meg and her companions.
* Powerful: They have the ability to influence events and overcome obstacles.
* Unpredictable: Their actions and words often defy logic and expectation.
More Specific Adjectives:
* Cosmic: They have a connection to the universe and its forces.
* Timeless: They seem to exist outside of time's constraints.
* Celestial: They have an ethereal and otherworldly quality.
* Benevolent: They are ultimately working for good, even if their methods are unconventional.
Descriptive Phrases:
* Three wise women: This is a common way to describe them, referencing the biblical Three Wise Men.
* Guardians of the universe: They protect the cosmos from evil.
* Cosmic travelers: They traverse vast distances through time and space.
The best adjective will depend on the specific context and what aspect of their characters you want to emphasize.