Comment by bena

"Circumstantial" does not mean "weak".

Circumstantial evidence is often strong enough and compelling enough to determine court cases. Circumstantial evidence is often better than direct evidence.

Circumstantial evidence: Stuff like DNA, fingerprints

Direct evidence: Bob's memory of the event.

https://en.wikipedia.org/wiki/Circumstantial_evidence

But please, continue using "the evidence is circumstantial" as if it means that it's not good enough.