inferential

1. Of, relating to, or involving inference.
2. Derived or capable of being derived by inference.

adjective

Presumed to be true, real, or genuine, especially on inconclusive grounds: conjectural, hypothetic, hypothetical, presumptive, supposed, suppositional, suppositious, supposititious, suppositive. See belief/unbelief.

The adjective has 5 meanings:

Meaning #1: relating to or having the nature of illation or inference
  Synonym: illative
  Pertains to noun: inference (meaning #1)

Meaning #2: (logic) of reasoning; proceeding from general premisses to a necessary and specific conclusion

Meaning #3: resembling or dependent on or arrived at by inference
  Synonym: illative

Meaning #4: derived or capable of being derived by inference

Meaning #5: based on interpretation; not directly expressed