elegant

US /ˈel.ə.ɡənt/
UK /ˈel.ə.ɡənt/
"elegant" picture
1.

pleasingly graceful and stylish in appearance or manner

:
She wore an elegant black dress to the party.
The building has an elegant design.
2.

(of a scientific theory or solution) pleasingly ingenious and simple

:
The mathematician presented an elegant solution to the complex problem.
The theory offers an elegant explanation for the phenomenon.