unmighty

From Middle English vnmyghty, vnmyȝty, unmihti, from Old English unmihtiġ (“weak, not mighty”), equivalent to un- +‎ mighty.

unmighty (comparative more unmighty, superlative most unmighty)

1. Not mighty; weak.
   • 2007 May 19, Virginia Heffernan, “A Television Revolution? Not Shown at Upfronts”, in New York Times‎:

     And how the unmighty have risen: Fox, which after all these years is still not counted among the “big three” networks by some old-timers, now attracts the audiences advertisers desire more.

• unmightiness

• thingumy