- Clever
- Delicate and highly refined
- Indirect (hint)
- Ingenious
- Not blunt
- Rarefied
- Slight
- A theory’ll sound fragile and airy
- Believe the reality to be a little otherworldly
- Celestial
- Delicate
- Delicate or refined
- Ether real when right out of the celestial spheres
- Exquisitely light and delicate