Answer:
1. Endowed with the power of reason; rational
2. In accordance with reason; not irrational or absurd
3. Provided
4. That it has a sensible criterion; ready to hear the reason, sensitive
5. Within the limits of reason, neither much more nor much less than what is considered probable or appropriate; moderate of a fair, average or considerable quantity or size, etc.
6. Sure
7. Which requires the use of reason
The meanings "provided" (3), "clear" (6), and "which requires the use of reason" (7) are not very relevant in this case, nor is (5) in the sense that "the The weather was reasonable "or" my Spanish is reasonable. " Therefore, we must limit our attention to the other meanings (determined in 1, 2 and 4).
Excluding obsolete meanings today and those that are reduced to certain disciplines such as physics and mathematics, the same dictionary distinguishes the following meanings from the "rational" epithet:
1. Who has the power of reasoning; endowed with reason
2. Of, referring to, or based on reason or reasoning
3. In accordance with reason; not foolish, absurd or extreme.
