a·pol·o·gist 
(ə-pŏlə-jĭst)
(ə-pŏlə-jĭst)n.
A person who argues in defense or justification of something, such as a doctrine, policy, or institution.
- unerringly
- UNESCO
- unessential
- uneven
- uneven bars
- unevenly
- unevenness
- uneventful
- uneventfully
- unexampled
- unexceptionable
- unexceptionably
- unexceptional
- unexceptionally
- unexpected
- unexpectedly
- unexpectedness
- unexploited
- unexpressed
- unexpressive
- unexpressively
- unexpressiveness
- unfading
- unfadingly
- unfailing