| A | B |
| ulterior | unstated; hidden; more remote |
| ultimate | final; not susceptible to further analysis |
| unaccountable | inexplicable; unreasonable or mysterious |
| unanimity | complete agreement |
| unassailable | not subject to question; not open to attack |
| unssuming | modest |
| unbridled | violent |
| uncanny | strange; mysterious |
| unconscionable | unscrupulous; excessive |
| uncouth | outlandish; clumbsy; boorish |
| unctuous | oily; bland; |
| underlying | fundamental; lying below |
| underscore | emphasize |
| undulating | moving with a wavelike motion |
| unearth | dig up |
| unequivocal | plain; obvious; unmistakable |
| unerringly | infallibly |
| unfathomable | incomprehensible; impenetrable |
| unfetter | liberate; free from chains |
| unfrock | strip a priest or minister of church authority |
| ungainly | awkward; clumsy; unwieldy |
| unimpeachable | blamelss and exemplary |
| uninhibited | unrepressed |
| unintimidating | unfrightening |
| unique | without an equal; single in kind |
| universal | characterizing or affecting all; present everywhere |
| unmitigated | unrelieved or immoderate; absolute |
| unobtrusive | inconspicuous; not blatant |
| unpalatable | distasteful; disagreeable |
| unprepossessing | unattractive |
| unrabel | disentangel; solve |
| unrequited | not reciprocated |
| unruly | disobedient; lawless |
| unscathed | unharmed |
| unseemly | unbecoming; indecent; in poor taste |
| unsightly | ugly |
| unstinting | giving generously; not holding back |
| untenable | indefensible; not able to be maintained |
| unwieldy | awkward; cumbersome; unmanageable |
| unwitting | unintentional; not knowing |
| upbraid | severely scold; reprimand. |
| uproarious | marked by commotion; extremely funny |
| upshot | outcome |
| urbane | suave; refined; elegant |
| utopia | ideal place, state or society |
| vacuous | empty; inane |
| vagaond | wanderer; tramp |
| vagrant | a homeless wanderer |
| valedictory | pertaining to farewell |
| valid | logically concincing; sound; legally acceptable |
| validate | confirm; ratify |
| valor | bravery |
| vampire | ghostly being that sucks the blodd of the living |
| vanguard | advance guard of military force; forefront of a movement. |
| vantage | position giving an advantage |
| vapid | dull and unimaginative;insipid and flavorless |
| variegated | many-colored |
| veer | change in direction |
| vehement | forceful; intensely emotional; with marked vigor. |