Nonaromatic Definition:
A compound that lacks a ring with a continuous system of overlapping
p orbitals.
Nonaromatic Explained:
A cyclic compound that doesn’t necessitate a continuous form of an overlapping ring of p orbitals need not be considered as aromatic or even anti aromatic and hence these are termed as nonaromatic or aliphatic. Its electronic energy is similar to that of its open-chain counterpart.