Which of these is synonymous with "rational"?

The term "rational" refers to something characterized by reason or logic. When we say something is rational, we are usually describing actions, thoughts, or decisions that make sense based on sound reasoning and logical thinking. Thus, the word "reasonable" serves as a strong synonym because it conveys a similar meaning. "Reasonable" implies that something is fair and logical, aligning closely with the idea of being rational.

The other choices do not align with this definition. For instance, "illogical" indicates a lack of reason or sound judgment, making it the opposite of rational. "Emotional" highlights feelings rather than reason, which also diverges from the concept of rationality. Finally, "compulsive" suggests actions that are driven by uncontrollable urges or impulses, lacking the reasoned thought characteristic of rationality.