Rational meaning

What does “rational” mean? Definitions, examples, synonyms and opposites.

“rational” is a noun and adjective with 5 meanings. Its most common meaning is: an integer or a fraction.

rational

consistent with or based on or using reason
“rational behavior”
“a process of rational inference”
Oppositesirrational
of or associated with or requiring the use of the mind
“intellectual problems”
“the triumph of the rational over the animal side of man”
Synonymsintellectual noetic
capable of being expressed as a quotient of integers
“rational numbers”
Oppositesirrational
having its source in or being guided by the intellect (as distinguished from experience or emotion)
“a rational analysis”

Source: WordNet 3.1, Princeton University