1. Sleep inducing
   - soporific, somniferous, somnific, hypnogogic, hypnagogic 
2. Inducing mental lethargy
   - narcotic, soporific

See also: depressant, uninteresting

• pariah
• pariah dog
• Paridae
• paries
• parietal
• parietal bone
• parietal cortex
• parietal gyrus
• parietal lobe
• parietal pericardium
• parietal placentation
• parietal pleura
• Parietales
• Parietaria
• Parietaria difussa
• parieto-occipital fissure
• parieto-occipital sulcus
• parietomastoid suture
• parimutuel
• paring
• paring knife
• paripinnate
• Paris
• Paris daisy
• Paris green