Commonly used as an uncountable and sometimes countable noun referring to the process of personal improvement.
Regular reading and reflection are essential for effective self-development.
La lecture régulière et la réflexion sont essentielles au développement personnel efficace.
self-developmentadjective Functions attributively before another noun (e.g. "self-development plan"); non-gradable.
de développement personnel The company offered a series of self-development courses to its employees.
L'entreprise a proposé une série de cours de développement personnel à ses employés.