rational meaning and definition

RATIONAL noun

Definition of rational (noun)

1. an integer or a fraction
   • synonyms: rational number

RATIONAL adjective

Definition of rational (adjective)

1. consistent with or based on or using reason
   • "rational behavior"; "a process of rational inference"; "rational thought"
   • antonym: irrational
2. of or associated with or requiring the use of the mind
   • "intellectual problems"; "the triumph of the rational over the animal side of man"
   • synonyms: intellectual, noetic
3. capable of being expressed as a quotient of integers
   • "rational numbers"
   • antonym: irrational
4. having its source in or being guided by the intellect (as distinguished from experience or emotion)
   • "a rational analysis"