The ability to identify, understand and manage one’s own emotions, as well as helping others to do the same. It can comprise of four domains: self-awareness, self-management, social awareness, and relationship management, which together have 12 competencies, including empathy, adaptability, achievement orientation and positive outlook.

Source:  Goleman, Daniel and Richard E. Boyatzis (2017). Emotional Intelligence Has 12 Elements. Which Do You Need to Work On? Harvard Business Review, 6 February 2017