nonexecutive director

noun

a director of a commercial company who is not a full-time member of the company but is brought in to advise the other directors

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012