GRE

ubiquitous ulcer ulcerate ulterior ultimate ultramundane umbrage umpire umpteen unabashed unadvised unaffected unalloyed unanimous unassuming unavailing unawares unbecoming unbidden unbolted uncanny uncharted unclad unconscionable uncouth unctuous undaunted underage underhanded underling undermine undesirable undoing undulate unearth unexampled unfailing unfathomed unfettered unflappable unfounded unfrequented unfurl ungainly unguarded unguent unicorn unimpeachable unkempt unprovoked unravel unremitting unruly unscathed unscrupulous unseemly unspotted unstudied untoward unversed unwieldy unwitting upbraid upend upheaval uphold upholstery upshift upstage upstart upsurge upswing uptake uptight urbane urine ursine usher usurious usurp usury utensil utilitarian utilize utopian uxorious