- unripe fruit
- undesirable person
- under-age
- unity in diversity
- ungraspable
- unicellular
- utero
- uxorious
- unacceptable
- unaccounted
- unbecoming
- unbending
- unbiased
- unblamable
- unblemished
- unbridled
- unbuckle
- uncalled
- uncannily
- unceasing
- uncoordinated
- uncrowned king
- unctuous
- undemonstrative
- undeniable
- under review
- under-lip
- undercover
- undergo
- undisciplined
- undistinguished
- undo
- undress
- undying
- unload
- unfalsifiable
- unfavourable
- unfettered
- unflattering
- unflinching
- unforgettable
- unhurried
- unify
- unintentional
- union
- union jack
- unisonal
- unmeaning
- unmoved
- unproblematic
- unpronounceable
- unravel
- unresolved
- unskilful
- unsolicited
- unspeakable
- unsuspecting
- unsystematic
- untamed
- untarnished
- unthinking
- untimely death
- untitled
- unto
- untold
- untouched
- untowardness
- untroubled
- untrue
- unwholesome
- unwritten
- unyielding
- upset stomach
- upside down
- upstream
- upward
- upwards
- upwardsof above
- uraemia
- urban
- urbanisation
- urinate
- ursa major
- used to familiar with
- usual
- usurer
- unfaithfulness
- uncreased
- unac-ceptable
- up to the mark
- underground cemetery
- unlikelihood
- unrelatedness
- unsigned
- unchanging factor
- unfairly disadvantage
- unsheltered
- unseasoned
- under a curse
- unfavourably