1. located farthest inside; most interior
2. most private or personal; most secret

Examples

• The treasure was hidden in the innermost chamber of the cave.
• She kept her innermost thoughts in a private diary.
• The innermost layer of the earth is called the core.
• He rarely shared his innermost feelings with anyone.
• The innermost circle of advisors met with the president.
• The innermost petals of the flower were a deep red color.
• She revealed her innermost fears to her best friend.