o·pal·esce 
(ō′pə-lĕs)
(ō′pə-lĕs)intr.v. o·pal·esced, o·pal·esc·ing, o·pal·esc·es
To exhibit an iridescent shimmer of colors.
[Back-formation from OPALESCENCE.]
- unpracticed
- unprecedented
- unprecedentedly
- unpredictability
- unpredictable
- unpredictably
- unprejudiced
- unpremeditated
- unprepared
- unpreparedly
- unpreparedness
- unprepossessing
- unpretending
- unpretentious
- unpretentiously
- unpretentiousness
- unpriced
- unprincipled
- unprintable
- unproductive
- unproductively
- unproductiveness
- unprofessional
- unprofessionalism
- unprofessionally