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.
However, this can be avoided simply by opening gifts and spinning PokeStops, as there’s a good chance they will find a Max Potion inside.
Source: https://gamerant.com/pokemon-go-worst-things-buy-from-shop/
The quickest and most consistent way to get the majority of bag is to spin PokeStops and Gyms.