logical

adj.

[1]	syllogistic(al) , inferential , deductive , inductive
[2]	reasonable , legitimate , plausible , sensible , sound , valid , intelligent , judicious , practical , rational , wise , proper
[3]	well-organized , coherent , consistent , sound , coherent , ordered , consistent , sensible , rational , reasonable , well-reasoned , well-thought-out
[4]	coherent , lucid