Not elegant or well-planned, lacking tact or subtlety.
Awkward, lacking coordination, not graceful, not dextrous.
Awkward or inefficient in use or construction, difficult to handle or manage especially because of shape.
A clumsy person.
Not able to be measured by the same standards as another term in the context.
having a ratio that is not expressible as a fraction of two integers.
having no common integer divisor except 1.
An incommensurable value or quantity; an irrational number.