1. Extremely painful
   - agonizing, agonising [Brit], excruciating, harrowing, torturing, torturous

See also: painful

• periderm
• peridinian
• Peridiniidae
• Peridinium
• peridium
• peridot
• peridotite
• perigee
• periglacial
• perigon
• perigonal
• perigone
• perigonium
• perigynous
• perihelion
• perijove
• peril
• Perilla
• Perilla frutescens crispa
• perilous
• perilously
• perilousness
• perilune
• perilymph
• perimeter