1. Lacking affection or warm feeling
   "an uncaring person"
   - detached, unaffectionate 
2. Without care or thought for others
   - thoughtless, unthinking

See also: inconsiderate, unloving

• pentecostalism
• Pentecostalist
• penthouse
• pentimento
• pentlandite
• pentobarbital
• pentobarbital sodium
• pentobarbitone
• pentode
• pentose
• Pentothal
• pentoxide
• pentoxifylline
• Pentstemon
• pentylenetetrazol
• penuche
• penuchle
• penult
• penultima
• penultimate
• penumbra
• penumbral
• penurious
• penuriously
• penuriousness