unpopular, a. disliked, [obnoxious], [odious], [offensive].
unpopularity, n. [odium], disesteem, obnoxiousness.
unpractical, a. impractical, [visionary], [Utopian].
unpraiseworthy, a. uncommendable, illaudable, indign.
unprejudiced, a. [impartial], [unbiased], unjaundiced.
unpremeditated, a. extemporaneous, [offhand], [impromptu], extempore.
unpretending, a. [unobtrusive], [modest], [unpretentious], unostentatious.
unpretentious, a. [unpretending].
unpreventable, a. [unavoidable], inevitable.
unprincipled, a. [unscrupulous].