Adjective
1. moving or capable of moving readily (especially from place to place);
"a mobile missile system""the tongue is...the most mobile articulator"2. (of groups of people) tending to travel and change settlements frequently;
"a restless mobile society""the nomadic habits of the Bedouins""believed the profession of a peregrine typist would have a happy future""wandering tribes"3. having transportation available
4. capable of changing quickly from one state or condition to another;
"a highly mobile face"5. affording change (especially in social status);
"Britain is not a truly fluid society""upwardly mobile"