from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A personality type characterized by an excessively positive disposition similar to, but more stable than, the hypomania of bipolar disorder.
from The Century Dictionary and Cyclopedia
- n. Insanity marked by violence and an impulse to acts of cruelty.
Could Thassa somehow be gifted in this sense, or does she perhaps "suffer" from a rare condition known as hyperthymia
In "Generosity," which centers on the search for a happiness gene, a writing professor discovers that one of his students has hyperthymia, a rare trait that generates euphoria.
This resilience, I believe, grew out of his personality, which is a fine case example of hyperthymia.