Slowbro is weak to Bug, Ghost, Grass, Electric, and Dark type moves.

What Is Slowbro Weak Against? (Quick Scoop)

Slowbro is a dual Water/Psychic type Pokémon, which gives it a specific set of weaknesses and resistances that show up consistently across the main series games and Pokémon GO.

Core Weaknesses (Type Chart View)

Here are the types that hit Slowbro super effectively:

  • Bug – deals 2× damage.
  • Ghost – deals 2× damage.
  • Grass – deals 2× damage thanks to its Water typing.
  • Electric – also 2× damage, another classic Water weakness.
  • Dark – 2× damage because of its Psychic typing.

In other words, if you’re asking “what is Slowbro weak against,” the short, practical answer is: bring strong Bug, Ghost, Grass, Electric, or Dark attacks.

Quick Battle Examples

Players and guides often recommend using fast, high‑attack Pokémon that match these types to “break” Slowbro’s bulk. For example:

  • A Grass attacker with a strong Grass move (e.g., a powerful Leaf Blade–style attack) to punish its Water typing.
  • A Dark or Ghost attacker using moves like Crunch or a Shadow Ball–type move to exploit its Psychic side.
  • An Electric attacker spamming strong Electric moves to overwhelm it before it can stall.

These patterns show up in modern guides for Scarlet/Violet and Sword/Shield as well as Pokémon GO resources, so they’re still relevant in 2025–2026 play.

Weaknesses vs Resistances Table

Here’s a quick HTML table you can drop directly into a page:

html

<table>
  <thead>
    <tr>
      <th>Category</th>
      <th>Types</th>
      <th>Effect on Slowbro</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Weaknesses</td>
      <td>Bug, Ghost, Grass, Electric, Dark</td>
      <td>These types deal 2× damage to Slowbro due to its Water/Psychic typing. [web:1][web:2][web:3][web:5][web:7][web:8][web:9]</td>
    </tr>
    <tr>
      <td>Resistances</td>
      <td>Fire, Water, Ice, Steel, Fighting, Psychic</td>
      <td>These types deal reduced damage (about 0.5×–0.63×) because they are resisted by one or both of Slowbro's types. [web:1][web:3][web:5][web:8]</td>
    </tr>
  </tbody>
</table>

Mini “Forum-Style” Take

If you’re struggling with a bulky Slowbro on ladder, just remember: it’s tanky, not invincible. Hit it on its weak side with strong Grass, Dark, Electric, Ghost, or Bug moves, and even this lazy tank melts surprisingly fast.

TL;DR:
Slowbro is weak to Bug, Ghost, Grass, Electric, and Dark type moves, and it resists Fire, Water, Ice, Steel, Fighting, and Psychic moves.

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