- unchastity
- unappreciated
- ungrudging
- update about
- unbuttoned
- underemphasize
- unquesti-onably
- under a spell
- unstated
- unashamed
- unaccountability
- unread
- undies
- unshackled
- unmotivated
- unmentionables
- undertow
- unmistak-ably
- unromantic
- unscratched
- unreservedly
- unstylish
- unsettled. nervous
- upslope
- undertone of
- up and running
- unbefriended
- unrevealed
- unprotesting
- under-the-table hugger-mugger
- unfulfilled
- until the cows come home
- unengaged
- undergrad
- urgency
- unregenerate
- undiplomatic
- unprintable
- unprofaned
- uneasiness
- undecorative
- unbolt
- unguent
- unvoi-ced
- unattested
- undershots
- unseating
- unmethodical
- unsupported
- Uriah Heep
- unappealable
- uncom-fortable
- unconsenting
- unexpectedly
- unobservant
- uncharacteristic
- unfami-liar
- under someone's spell
- un-gentlemanly
- uncrowded
- uncouthness
- undismayed
- unappealing
- untested
- up to now
- unsteadily
- unforhcoming
- underfed
- unequi-vocal
- under someone's thumb
- unspeak-able
- undisclosed
- undeviating
- unexcitable
- unmis-takable
- under lock and key
- underweight
- unflappability
- undermining
- unprescriptive
- unforthcoming
- unmerited
- unreasonableness
- unthought-out
- up to speed
- unclasp
- unambitious
- unpublished
- unwritten rule
- unjustified
- under the spell of
- upon us
- uninfected
- under-pinning
- undersize
- unbutton
- unceasingly
- un-impressed
- uncomprehending
- up to then