1. agreeable to reason; reasonable; sensible: a rational plan for economic development.
2. having or exercising reason, sound judgment, or good sense: a calm and rational negotiator.
3. being in or characterized by full possession of one's reason; sane; lucid: The patient appeared perfectly rational.
4. endowed with the faculty of reason: rational beings.
5. of, relating to, or constituting reasoning powers: the rational faculty.
6. proceeding or derived from reaso
"bids can be rational in terms."
"recreations can be rational in senses."
"plannings can be rational for classes."
"people can be rational to people."
"people can be rational except points."
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