Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
If Pikachu wanted to do any significant damage to Geodude, it needed Iron Tail.
Source: https://www.cbr.com/pokemon-ash-won-his-gym-battle-with-roxanne-the-hard-way/