1. Made without leavening
   "unleavened bread is often simply flour mixed with water"
   - unraised

Antonym: leavened

• outward-developing
• outward-moving
• outwardly
• outwardness
• outwards
• outwear
• outweigh
• outweird
• outwit
• outwith
• outwork
• ouzel
• ouzo
• OV
• oval
• oval kumquat
• Oval Office
• oval window
• oval-bodied
• oval-fruited
• oval-shaped
• ovalbumin
• Ovalipes
• Ovalipes ocellatus
• ovarian