to do clumsily and awkwardly; botch

He bungled the job.

to perform or work clumsily or inadequately

He is a fool who bungles consistently.

a bungling performance.

that which has been done clumsily or inadequately.

adjective

amateurish , awkward , clumsy , gauche , inapt , inept , inexpert , maladroit , unskillful

verb

botch , bungle , butcher , confuse , fail , flounder , flub , fluff , fumble , garble , goof , hack , jumble , miscue , misdo , mishandle , misstep , mistake , mix up , muddle , muss , slip , stumble