logical in WordNet English dictionary

1. marked by an orderly, logical, and aesthetically consistent relation of parts
   "a coherent argument"
   coherent  consistent  logical  ordered 
   
2. capable of thinking and expressing yourself in a clear and consistent manner
   "a lucid thinker"; "she was more coherent than she had been just after the accident"
   coherent  logical  lucid 
   
3. based on known statements or events or conditions
   "rain was a logical expectation, given the time of year"
   legitimate  logical 
   
4. capable of or reflecting the capability for correct and valid reasoning
   "a logical mind"
   logical