adj.
1.capable of or reflecting the capability for correct and valid reasoning
2.in accordance with reason or logic
3.marked by an orderly, logical, and aesthetically consistent relation of parts
4.based on known statements or events or conditions
5.capable of thinking and expressing yourself in a clear and consistent manner
Idiom of the Day
You bet your life!
most certainly, without any doubt
"You bet your life I will be attending the conference next year."