- Clandestine
- Confidential
- Covert
- Not public
- Private
- Something concealed
- Something unrevealed
- ... or outer
- Blockchain nerd’s a bit cerebral
- Church’s ... sanctum
- Esoteric
- Hidden
- Hidden (feelings)
- Hidden within
- Circumscribed
- Inner
- Intellectual ran in late, flustered, forgetting an answer
- Interior
- Interior; Inside
- Inward
- Private
- Intimate
- Mutated monster in secret
- Private
- Farthest inward; most remote from the outward part;
inmost; deepest within.
- Daily account
- Daily record
- Even Admiral Ray had a logbook
- Journal
- Logbook
- Private journal
- A register of daily events or transactions; a daily record;
a journal; a blank book dated for the record of daily memoranda; as, a
diary of the weather; a physician's diary.