托福单词列表

ubiquitous ultimate ultimately ultraviolet unable unacceptable unadorned unaided unaltered unanimity unanswered unanticipated unattractive unavailable unavoidable unavoidably unaware unbalance unbelievable unbiased unbind unbreakable unbridgeable unbroken uncarved uncertain uncertainty unchangeable unchanging uncharted uncle unclear uncomfortable uncommon uncompetitive unconsciously uncontested uncontrollably unconventional uncooked uncooperative uncorrupt uncounted uncover uncritical uncrumple undecided undeniable underestimate underfoot undergo undergraduate underground underlie underlies undermine underneath undernutrition underscore understandable understandably understate understory undertake underwater underwing underworld undesirable undeveloped undifferentiated undiscovered undisputed undisturbed undoubtedly unearned unearth uneducated unemployed unemployment unending uneven unevenly unexpected unexpectedly unexplored unfailingly unfair unfairly unfamiliar unfavorably unfertilized unfocused unfold unforeseen unfortunate unfortunately unhappy unhindered uniform uniformitarianism uniformity unify unimaginable unimportant unincorporated uninhabitable uninhabited unintentionally uninteresting uninterrupted union unionization unique uniquely uniqueness unit unity universal universality universally universe university unjust unknowing unknown unless unlike unlimited unload unmanageable unmarried unmatched unmistakable unnatural unnecessarily unnecessary unnoticeable unnoticed unobservable unobtainable unoccupied unpalatable unparalleled unplanned unpleasant unpopular unprecedented unpredictability unpredictable unpredictably unprocessed unproductive unprofitable unpromising unprotected unproven unpublished unquestionably unquestioning unravel unreachable unread unreal unrecognizable unreliable unresolved unrestricted unsafe unsatisfactory unschooled unseen unselective unselfish unsettle unskilled unsophisticated unspecified unspoiled unstable unsubstantiated unsuccessful unsuitable unsung unsure unsureness unsuspected untapped untie untimely untold untouched untraditional untreated untrue untwist unusable unused unusual unverified unwary unwelcome unwell unwieldy unwilling unwillingly unwillingness upcoming updraft upgrade upheaval uphold upland uplift upon upper uppermost upright upriver uproot upset upside upsurge upward upwind uranus urbanism urbanity urbanization urbanize urchin urge urgency urgent urn USA usable useable useful usefully usefulness useless user usher usual Utah Ute utensil utilitarian utility utilization utilize utmost Utopian utter utterance utterly