Well-being as psychological and also interdisciplinary based concept. V. Kebza, I. Solcova. The study brings an overview of development of opinions on the nature of well-being. It makes an effort to terminological and content clearing in this field regarding the up to now lasting overlapping with many related concepts, taking into account the developmental sources of possible differentiation between related concepts in the ancient psychology (eudaimonia as the gratification stemming from mental activity and happiness but also from everyday realization of the virtue - arete). The authors discuss the placement of the concept in the framework of psychological categories and on the basis of analysis of tendencies in the scientific literature they mention the main approaches to defining the dimension of well-being. They draw attention to the necessity of conceptualization of structural but also processual dimensions in the framework of the well-being complex and mention the possible psychological founding of well-being among moods, affects, and attitudes stressing the habitual and actual components of well-being and its cognitive, emotional, and evaluation aspects. They point to the health, social, religious, economical, and socio-cultural dimensions of wellbeing and present the main determinants and predictors of well-being.