- unsteady
- unsubstantial
- unrusted
- under the banner of
- under the leadership of
- used as the second member in the compound
- uncover
- unresponsive
- unfeeling
- unresponsiveness
- unparallel
- united republic of tanzania
- untrimmed
- undoable
- uncut
- undrawn
- untrembling
- unconsumed
- unspent
- unexpended
- unplayable
- undetected
- unpacked
- unenclosed
- undischarged
- unsmoothed
- unexploded
- unmissable
- unerring
- unputdownable
- unfrozen
- uncultivable
- uncultivatable
- uncultivated
- untilled
- unswept
- unbowed
- unburied
- unsinkable
- unfirm
- utensil_store
- usually used in plural form
- used to carrying loads
- unproductive
- unfertile
- unproductivity
- unfertility
- upkeeping
- upkeep
- under_ taking