- unhidden
- undesirability
- unfavourable unfortunate
- unauthenticated
- unimpressive
- unappro-achable
- unspecifiable
- under wraps
- underpinning
- upwards of
- un-abating
- unusu-alllly
- unable to do something
- ultramarine
- upmarket
- unproven
- ungrudgingly
- unwished for
- undusted
- undershorts
- unchained
- unscrupulousness
- unmoor
- underhandedness
- unescorted
- unconfirmed
- underlinen
- umber
- unhandy
- unwan-ted
- uniquely
- uncinate
- up against it
- U
- unmodulated
- unascertained
- untethered
- upbraiding
- unlearned
- uniqueness
- unpierceable
- unfertile
- unhooked
- underthings
- undervalued
- undeniably
- unmusical
- unindebted
- unyoke
- ululate
- unconditioned
- unfluctuating
- unimpressed
- ultra-careful
- unrighteousness
- unlevered
- unlocked
- until now
- unsubtantial
- unshockable
- untrammelled
- unmethodically
- uncurbed
- unshackle
- unsporting
- unfitness
- unenergetic
- unacceptability
- uncomplimentary
- unprofitability
- unhook
- unshrinking
- uppercut
- uncounted
- unmemorable
- unsatisfactorily
- unobserved
- unornamented
- undependable
- unsuspicious
- unamicable
- unbudgeable
- upwards of. an t. below
- unsettled. nervous
- under-the-table hugger-mugger
- unmotivated
- up and running
- unstated
- unshackled
- under a spell
- unreservedly
- undulation
- unrealized
- unmistak-ably
- unreasoned
- until then
- unscratched
- unaccountability
- unstylish
- uncombed