pro·fi·cien·cy 
(prə-fĭshən-sē)
(prə-fĭshən-sē)n. pl. pro·fi·cien·cies
The state or quality of being proficient; competence.
- unalterably
- unambiguous
- unambiguously
- un-American
- Unami
- Unamuno
- unanalyzable
- unanalyzably
- unaneled
- unanimity
- unanimous
- unanimously
- unanimousness
- unannounced
- unanswerability
- unanswerable
- unanswerableness
- unanswerably
- unanticipated
- unanticipatedly
- unapologetic
- unapologetically
- unappealable
- unappealably
- unappealing