Objects that are not symmetrical are referred to as asymmetrical.
8
metallic
Possibly mono-symmetrical
If you mean ABACABA, then it is called symmetrical rondo.
is a arrow symmetrical
No. Socks are not symmetrical.
No but an isosceles trapezoid is symmetrical.
Yes, it is symmetrical
porifera & echinodermata
The space it occupies isn't symmetrical.
It's horizontally symmetrical.
Pentagons can be symmetrical, but are not always so.