Definition of "undistinguished"

While most are familiar with the history of the Third Reich from 1933 onward, this essay offers insight into the undistinguished, prefamous Hitler.

2015, J. Ward Regan, Great Books Written in Prison, page 167

All the messages in and around Wembley before and during this FA Cup final pointed to this Wembley showpiece marking the end of Van Gaal's largely undistinguished two-year spell in charge.

2016 May 22, Phil McNulty, “Crystal Palace 1-2 Manchester United”, in BBC‎