Of, relating to, or characteristic of a diary or the practice of diary writing.
From 'diarist' + English suffix '-ic' (characterized by), creating an adjective form that describes diary-like qualities.
Authors use 'diaristic style' to mean writing that feels personal and intimate like a diary—it's a literary technique that makes readers feel like they're reading someone's private thoughts.
Complete word intelligence in one call. Free tier — 50 lookups/day.