Psychic-type Pokémon are weak to Bug , Ghost , and Dark moves in the mainline Pokémon games.

Quick Scoop: Psychic Weaknesses

  • Bug-type moves deal super-effective damage to Psychic Pokémon.
  • Ghost-type moves are also super-effective against Psychic types.
  • Dark-type moves hit Psychic Pokémon super-effectively and are one of the most reliable counters.

Here’s a compact view in HTML, as requested:

html

<table>
  <thead>
    <tr>
      <th>Attacking Type</th>
      <th>Effect on Psychic Pokémon</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Bug</td>
      <td>Super-effective (2× damage)</td>
    </tr>
    <tr>
      <td>Ghost</td>
      <td>Super-effective (2× damage)</td>
    </tr>
    <tr>
      <td>Dark</td>
      <td>Super-effective (2× damage)</td>
    </tr>
  </tbody>
</table>

In battle terms: if you’re asking “what are Psychic Pokémon weak against,” the practical answer is to bring strong Bug, Ghost, or Dark attackers and hit them with matching moves.

TL;DR: Psychic Pokémon are weak to Bug, Ghost, and Dark moves—build your team around those types to shut them down.

Information gathered from public forums or data available on the internet and portrayed here.