overproficient

English

Etymology

From over- +‎ proficient.

Adjective

overproficient (comparative more overproficient, superlative most overproficient)

1. Very or excessively proficient.
   • 1926, John Galsworthy, The Silver Spoon, page 128:

     Michael was limber, Sir Alexander stocky; neither was overproficient with his fists.

   • 1996, J. T. Edson, Arizona Gun Law, page 141:

     The houseman decided that Eldridge must have only recently taken up the occupation and was not overproficient at it.