U - IMPRESSIVE PHRASES - FIFTEEN THOUSAND USEFUL PHRASES

ugly, evil, hateful, and base

uncertain, questionable, erroneous, and mistaken

unctuous, shrill, brisk, and demonstrative [unctuous = exaggerated,
insincere]

unhappy, unfortunate, distressed, and disastrous

uninteresting, lifeless, obscure, and commonplace

unity, aggressiveness, efficiency, and force

unkind, severe, oppressive, and callous

unpractical, childish, slipshod, and silly

unreasonable, foolish, excessive, and absurd

unrivaled, unequaled, incomparable, and matchless

upright, high-minded, brave, and liberal

urgent, important, immediate, and imperative

usage, custom, habit, and practise