1. Not based on reason
   "there is a great deal that is nonrational in modern culture" 
2. Obtained through intuition rather than from reasoning or observation
   - intuitive, visceral

See also: illogical, irrational, unlogical

• compensatory spending
• compensatory time
• compere
• compete
• genus Pulex
• genus Pulicaria
• genus Pulsatilla
• genus Punica
• genus Pycnanthemum
• genus Pygopus
• genus Pygoscelis
• genus Pylodictus
• genus Pyracantha
• genus Pyralis
• genus Pyrausta
• genus Pyrethrum
• genus Pyrocephalus
• genus Pyrola
• genus Pyrophorus
• genus Pyrrhula
• genus Pyrrhuloxia
• genus Pyrrosia
• genus Pyrularia
• genus Pyrus
• genus Pythium