1. Being deepest within the self
   "one's innermost feelings"
   - inmost 
2. Situated or occurring farthest within
   "the innermost chamber"
   - inmost

See also: inner, inward

• probiotic
• probiotic bacterium
• probiotic flora
• probiotic microflora
• probity
• problem
• problem solver
• problem solving
• problem-oriented language
• problematic
• problematical
• problematically
• problematise
• problematize
• problemo
• Proboscidea
• Proboscidea arenaria
• Proboscidea fragrans
• Proboscidea louisianica
• proboscidean
• proboscidian
• proboscis
• proboscis flower
• proboscis monkey
• proboscis worm