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.
Just like in the source material, Avada Kedavra is an instant-kill attack, which is naturally going to be an immensely powerful tool in your spellbook.
Source: https://www.digitaltrends.com/gaming/hogwarts-legacy-learn-avada-kedavra/