Longman Dictionary of Contemporary English - dynamic

~1 adj 1 full of energy and new ideas, and determined to succeed  (a dynamic young businesswoman) 2 technical continuously moving or changing  (Markets are dynamic and a company must learn to adapt.) 3 technical connected with a force or power that causes movement 4 technical a dynamic v describes an action or event, not a state - dynamically adv ~2 n 1 dynamics a) the way in which things or people behave, react, and affect each other  (the dynamics of capitalist economies | group dynamics (=the way in which the members of a group behave towards each other)) b) the science concerned with the movement of objects and with the forces related to movement c) changes of loudness in music 2 formal something that causes action or change  (Feminism is seen as a dynamic of social change.)