Neutrino and antineutrino are two subatomic particles. The key difference between antineutrino and neutrino is that the neutrino is a particle whereas the antineutrino is an antiparticle.
There are many usages of neutrino and antineutrino in various fields. We can use the properties such as mass, charge, and spin of these particles in many ways to detect and determine properties of systems. We can define a neutrino as a subatomic particle having no electrical charge (but other properties are similar to an electron), very little mass and it is very abundant in universe. On the other hand, an antineutrino is the anti-particle of neutrino.
