If you describe someone as upwardly mobile, you mean that they are moving, have moved, or are trying to move to a higher social position. The Party has been unable to attract upwardly mobile voters. The upwardly mobile are people who are upwardly mobile. the large detached houses of the upwardly mobile with their double garages and array of cars. Those regarded as advancing rapidly in economic and social standing. Used with the. moving up through the social classes and becoming richer