Hubris (, from ancient Greek ὕβρις) describes a personality quality of extreme or foolish pride or dangerous overconfidence, often in combination with (or synonymous with) arrogance. In its ancient Greek context, it typically describes behavior that defies the norms of behavior or challenges the gods which, in turn, brings about the downfall of the perpetrator of hubris. The adjectival form of the noun hubris is "hubristic".
Arrogance, comes from the Latin adrogare, certain attitudes are required supposedly as the right to be applied to other people. The pretension and other terminologies may be associated, although they are not synonymous. Being related according to studies, with the need for victory (even if it doesn't always mean winning) instead of reconciliation made by "friendly" groups.
Hubris is usually perceived as a characteristic of an individual rather than a group, although the group the offender belongs to may suffer collateral 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.