logical

Adjective

• 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
    

• marked by an orderly, logical, and aesthetically consistent relation of parts
  • a coherent argument
    

• based on known statements or events or conditions
  • rain was a logical expectation, given the time of year
    

• capable of or reflecting the capability for correct and valid reasoning
  • a logical mind
    

Related words

• Synonyms: 
  coherent , lucid , consistent , ordered , legitimate
• Antonyms: 
  incoherent , illogical , unlogical