what are psychic pokemon weak against

Psychic-type Pokemon are weak against Bug, Ghost, and Dark-type Pokemon. Dark-types are especially useful as they are immune to Psychic moves. Psychic moves also don’t do very much damage against Steel Pokemon or other Psychic types. It is important to note that some Psychic-type Pokemon may have a second type, which means they may also be weak against other forms of damage relating to that type.