No. Vortex is a noun.
Adjective angles? Maybe you meant adjacent angles. Adjacent angles are angles that share a side and a vortex (corner point).| /| /|/____________Pretty bad text drawin up there, but you see 2 angles sharing one side, and they also share a vortex.
There is no antonym for vortex.
In the eye of the vortex
Vortex.
The singular form of vortex is "vortex" and the plural form is "vortices."
Vortex already is a singular form. The plural can be vortexes or vortices. Both are equally correct.
Look at that Vortex go spinning!
The plural form of vortex is vortices.
Godspeed the Vortex was created in 1993.
Vortex Comics was created in 1982.
The Vortex Blaster was created in 1960.
Nerf Vortex was created in 2011.