Adjective

(er)

awkward, lacking coordination, not graceful, not dextrous

He's very clumsy . I wouldn't trust him with carrying the dishes.

Not elegant or well-planned, lacking tact or subtlety

It is a clumsy solution, but it might work for now.

What a clumsy joke...

awkward or inefficient in use or construction, difficult to handle or manage especially because of shape

Adjective

(en adjective)

Not manageable; not readily submitting to handling or management; not easily restrained, governed, or directed; not controllable.

*{{quote-magazine, date=2013-06-07, author=(Joseph Stiglitz)

, volume=188, issue=26, page=19, magazine=(The Guardian Weekly) , title= Globalisation is about taxes too , passage=It is time the international community faced the reality: we have an unmanageable , unfair, distortionary global tax regime. It is a tax system that is pivotal in creating the increasing inequality that marks most advanced countries today […].}}