A "rational decision" is one that is based on logical thinking, reasoning, and evidence, rather than on emotions or impulses. It means making a choice that is sensible and well thought out. Full definition
The director said that it was also to empower consumers to make rational decision when making their choices of services that would provide them with value for their money. (nigeriapoliticsonline.com)
If the children are old enough to make rational decisions on their own behalf, the judge will hear their wishes, but may choose not to enforce them over any other input. (divorce.com)
By doing so, you will be able to make thoughtful and rational decisions for your portfolio. (sleepycapital.com)