thermal :: pertaining to heat
titanic :: gigantic
titular :: nominal holding of title without obligations
torpid :: dormant; dull; lethargic
tortuous :: winding; full of curves
touchy :: sensitive; irascible
toxic :: poisonous
tractable :: docile
transient :: fleeting; quickly passing away; staying for a short time
translucent :: partly transparent
transparent :: permitting light to pass through freely; easily detected
tremulous :: trembling; wavering
trenchant :: cutting; keen
trite :: hackneyed; commonplace
truculent :: aggressive; savage
tumid :: swollen; pompous; bombastic
turbid :: muddy; having the sediment disturbed
turgid :: swollen; distended
ubiquitous :: being everywhere; omnipresent
ulterior :: situated beyond; unstated
ultimate :: final; not susceptible to further analysis
unassuaged :: unsatisfied; not soothed
unassuming :: modest
unbridled :: violent
uncanny :: strange; mysterious
unconscionable :: unscrupulous; excessive
uncouth :: outlandish; clumsy; boorish
unctuous :: oily; bland; insincerely suave
unearthly :: not earthly; weird
unequivocal :: plain; obvious
unfaltering :: steadfast
unfeigned :: genuine; real
ungainly :: awkward
unimpeachable :: blameless and exemplary
unique :: without an equal; single in kind
unkempt :: disheveled; with uncared for appearance
unmitigated :: harsh; severe; not lightened
unruly :: disobedient; lawless
unseemly :: unbecoming; indecent
unsullied :: untarnished
untenable :: unsupportable
unwitting :: unintentional; not knowing
unwonted :: unaccustomed
urbane :: suave; refined; elegant
uxorious :: excessively devoted to one"s wife
vacuous :: empty; inane
vainglorious :: boastful; excessively conceited
vapid :: insipid; inane
variegated :: many-colored
vaunted :: boasted; bragged; highly publicized
vehement :: impetuous; with marked vigor
venal :: capable of being bribed
venerable :: deserving high respect
venial :: forgivable; trivial
ventral :: abdominal
venturous :: daring
veracious :: truthful
verbose :: wordy
verdant :: green; fresh
vernal :: pertaining to spring
versatile :: having many talents; capable of working in many fields