1.Definition: (sometimes followed by `with') in agreement or consistent or reliable

"Testimony consistent with the known facts", "I have decided that the course of conduct which I am following is consistent with my sense of responsibility as president in time of war"

2.Definition: capable of being reproduced

Related Adjective(s):reproducible

3.Definition: marked by an orderly, logical, and aesthetically consistent relation of parts

Related Adjective(s):coherent, logical, ordered

4.Definition: the same throughout in structure or composition

"Bituminous coal is often treated as a consistent and homogeneous product"

Related Adjective(s):uniform