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1.
A play on the common term "user-friendly", a user-hostile design is one that is, deliberately or accidentally, difficult or cumbersome for the intended user.

Often used derisively to describe the competition.
We intend to improve upon the user-hostile design of your existing sales tool.

Some say that the user-hostile design of the original QWERTY keyboard was an intentional effort to slow typists down so as not to allow them to jam the mechanical parts.
by jfkelley June 16, 2009