unwieldsome

From un- +‎ wieldsome.

unwieldsome (comparative more unwieldsome, superlative most unwieldsome)

1. (obsolete) Not easily wielded or managed.
   • 1567, Arthur Golding (translator), The. XV. Bookes of P. Ouidius Naso, entytuled Metamorphosis, London: William Seres, Book 7, p. 80,

     And as from dull vnwieldsome age to youth he backward drew:

     Euen so a liuely youthfull spright did in his heart renew

   • 1579, Thomas North (translator), Plutarch’s Lives, edited by W. H. D. Rouse, London: J.M. Dent, 1899, Volume 7, “Alexander the Great,” p. 89,

     […] his army was very heavy and unwieldsome to remove, for the wonderful carriage and spoils they had with them:

• unwieldy