1. A reference to certain details which are based on facts that allow a court to deduce that somebody is legally guilty without conclusive proof: Circumstantial evidence is actually founded on conjecture or surmise and not on sufficient testimony or verification.
2. Relating to something of no primary significance; incidental; not essential: Because the evidence was so circumstantial and of no real importance, the case was postponed to a later date.
3. Pertaining to a complete amount of details: Mr. Hathaway wanted to have a circumstantial report regarding the debate between the two parties.
4. Pertaining to speech that is characterized by unnecessary details that impede rather than promote communication: Jack's discourse on the topic of gardening was so circumstantial that the listeners lost the complete essence or idea of what he was talking about!