1. In an impregnable manner
   "the sight of that bland, impregnably righteous face has been enough to make their blood run cold"

See also: impregnable

• devil's food cake
• devil's milk
• devil's tongue
• devil's turnip
• devil's urn
• devil's walking stick
• devil's weed
• devil-may-care
• devil-worship
• deviled egg
• devilfish
• devilise
• devilish
• devilishly
• devilize
• devilment
• devilry
• deviltry
• devilwood
• devious
• deviously
• deviousness
• devisable
• devisal
• devise