Bug, Ghost, and Dark type moves are all super effective against Psychic-type Pokemon. As these are considered basic fears of the mind and would be the weakness of a Psychic which fights using its mind.
Fighting types are weak against psychic and flying types.
Psychic-Type moves are weak against Steel-Types and other Psychic-Types. Psychic-Type Pokémon are weak against Ghost-Types, Bug-Types, and Dark-Types.
Hitmontop is a Fighting Type pokemon which are weak to Psychic, Fairy, and Flying type moves.
Machamp is a Fighting type pokemon which are weak to Psychic, Fairy, and Flying type moves.
Psychic type moves are not effective against other Psychic types and Steel Types.
Psychic Pokemon are strong against fighting and posion types, but they are weak against dark type. The best basic psychic Pokemon is Alakazam
The pokemon that are strong against psychic are bug, dark, and ghost.
Psychic is strong against Poison and Fighting, weak against Psychic and Steel, and has no effect on Dark. Bug, Dark, and Ghost are strong against Psychic. Psychic and Fighting are weak against it. There are no types that have zero effect on it.
Ghost-type Pokemon are strong against Psychic-types. This is because Ghost-type moves are super effective against Psychic types, giving them an advantage in battles. Additionally, Dark-type Pokemon are also strong against Psychic-types.
Psychic type Pokemon are weak to Dark, Bug and Ghost type moves. Psychic Pokemon can also struggle against Steel types as not all Psychic Pokemon can learn moves effective against them. Overall the best type to use against Psychic types is the Dark type. Since the Dark type is not only super effective against them but is also immune to Psychic moves.
Fighting moves are weak against Flying type Pokémom, and Psychic moves are good against Fighting type Pokémom.
Bug type moves and Ghost type moves and Dark type moves are effective against psychic types, Rock types are weak against Grass, Water, Fighting, Ground and Steel type moves.