1) Evidential 2) Indicant 3) Indication 1) Evidential 2) Significant 
• (a.) Furnishing evidence; asserting; proving; evidential.
Ev`i·den'ti·a·ry adjective Furnishing evidence; asserting; proving; evidential. « When a fact is supposed, although incorrectly, to be evidentiary of, or a mark of, some other fact.» J. S. Mill. 
(1) Constituting evidence or having the quality of evidence. For example, someone's statement at the scene of a car wreck that one of the drivers was speeding has evidentiary value because it says something about how the accident happened. (2) Something that relates to the evidence in a particular case. For example, if a judge holds a hearing to de...
[adj] - (law) pertaining to or constituting evidence
adjective pertaining to or constituting evidence; `evidentiary technique`; `an evidentiary fact`
evidential. · pertaining to or constituting evidence.