overeducated

/ˌoʊvərˈɛdʒəkeɪtɪd/
adjective
  1. Having more education than is needed for a job or situation.
    • Many graduates worry they are overeducated and cannot find suitable work.
    • She felt overeducated for the cashier position but needed the job.
    • He was overeducated for the simple tasks and quickly became bored.