Hubris (//, also hybris, from ancient Greek ὕβρις) means extreme pride or self-confidence. When it offends the gods of ancient Greece, it is usually punished. The adjectival form of the noun hubris is “hubristic”.
Hubris is usually perceived as a characteristic of an individual rather than a group, although the group the offender belongs to may suffer consequences from the wrongful act. Hubris often indicates a loss of contact with reality and an overestimation of one’s own competence, accomplishments or capabilities, especially when the person exhibiting it is in a position of power.