1. Cheerfully irresponsible
   - carefree, freewheeling, happy-go-lucky, harum-scarum, slaphappy 
2. Marked by a carefree unconventionality or disreputableness
   - raffish, rakish

See also: irresponsible, unconventional

• paresthesia
• paretic
• Pareto
• pareve
• parfait
• parfait glass
• parfleche
• parfocal
• parget
• pargeting
• pargetry
• pargetting
• parheliacal
• parhelic
• parhelic circle
• parhelic ring
• parhelion
• pari passu
• pari-mutuel machine
• pariah
• pariah dog
• Paridae
• paries
• parietal
• parietal bone