Main entry: symmetric, symmetrical
Definition: having similarity in size, shape, and relative position of corresponding parts
Antonyms: asymmetric, asymmetrical
Definition: characterized by asymmetry in the spatial arrangement or placement of parts or components
Antonyms: irregular
Definition: contrary to rule or accepted order or general practice
Antonyms: irregular
Definition: (of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement
Antonyms: irregular
Definition: (used of the military) not belonging to or engaged in by regular army forces
Antonyms: uneven
Definition: not even or uniform as e.g. in shape or texture
Definition: not divisible by two