na-adjective, noun
detailed; minutely detailed; fine-grained
Describes something that is worked out or depicted in very fine detail, such as a plan, description, or artwork. Often used in formal or technical contexts.
彼は事件の細密な報告書を作成した。
He prepared a detailed report on the incident.
この絵は細密に描かれている。
This painting is drawn in fine detail.
Compound of 細 (fine, minute) and 密 (dense, detailed). The combination conveys the idea of something being detailed down to the smallest parts.