evil and rude adj.
Both evil and rude, but with the additional connotation that
the rudeness was due to malice rather than incompetence. Thus,
for example: Microsoft's Windows NT is _evil_ because it's a
competent implementation of a bad design; it's _rude_
because it's gratuitously incompatible with Unix in places where
compatibility would have been as easy and effective to do; but
it's _evil and rude_ because the incompatibilities are
apparently there not to fix design bugs in Unix but rather to
lock hapless customers and developers into the Microsoft way.
Hackish _evil and rude_ is close to the mainstream sense of
`evil'.