logical

capable of or reflecting the capability for correct and valid reasoning

• “a logical mind”

in accordance with reason or logic

• “a logical conclusion”

marked by an orderly, logical, and aesthetically consistent relation of parts

• “a logical argument”
• “the orderly presentation”

based on known statements or events or conditions

• “rain was a logical expectation, given the time of year”

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”