rational

Definition 1

Behavior guided more by conscious reasoning than by experience, and not adversely affected by emotions.

Definition 2

Thinking process that employs logical, objective, and systematic methods in reaching a conclusion or solving a problem.

Definition 3

Person who is not mentally imbalanced or under the sway of overpowering emotions, can draw logical inferences, and is capable of normal mental process of weighing pros and cons of an action, choice, or decision. Opposite of insane. See also Reasonable.