a·syn·chro·nism 
(ā-sĭngkrə-nĭz′əm) or a·syn·chron·y (-krə-nē)
(ā-sĭngkrə-nĭz′əm) or a·syn·chron·y (-krə-nē)n.
Lack of temporal concurrence; absence of synchronism.
a·synchro·nous (-nəs) adj.
a·synchro·nous·ly adv.
- perfection
- perfectionism
- perfectionist
- perfectionistic
- perfective
- perfectively
- perfectiveness
- perfectivity
- perfectly
- perfectness
- perfect number
- perfecto
- perfect participle
- perfect pitch
- perfect rhyme
- perfect square
- perfect storm
- perfervid
- perfervidly
- perfervidness
- perfidious
- perfidiously
- perfidy
- perfluorocarbon
- perfoliate