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.
The Astral Stair stage unlocks when players reach level 80 in the Inlaid Library, but only when the latter stage is the Inverse version of itself may be selected when players grab the Garcia's Mirror Relic on the Eudaimonia M stage mentioned earlier.
Source: https://screenrant.com/how-to-unlock-astral-stair-vampire-survivors/