1. In a blissful manner
   "he was blissfully unaware of the danger"
   - beatifically

See also: blissful

• unpremeditated
• unprepared
• unprepossessing
• unpresentable
• unpresidential
• unpressed
• unpretending
• unpretentious
• unpretentiously
• unpretentiousness
• unpreventable
• unpriestly
• unprincipled
• unprintable
• open-end wrench
• open-ended
• open-eyed
• open-face sandwich
• open-faced
• open-heart surgery
• open-hearth
• open-hearth furnace
• open-hearth process
• open-minded
• open-mindedly