rational
1. [ adjective ] consistent with or based on or using reason
Examples:

"rational behavior" "a process of rational inference" "rational thought"

Related terms: irrational demythologised coherent demythologized intelligent reasonable reasonable logical sane
2. [ adjective ] of or associated with or requiring the use of the mind
Synonyms: intellectual noetic
Examples:

"intellectual problems" "the triumph of the rational over the animal side of man"

Related terms: mental
3. [ adjective ] of or associated with or requiring the use of the mind
Synonyms: intellectual
Examples:

"intellectual problems" "the triumph of the rational over the animal side of man"

Related terms: mental
4. [ adjective ] (math) capable of being expressed as a quotient of integers
Examples:

"rational numbers"

Related terms: irrational mathematics ratio
5. [ adjective ] having its source in or being guided by the intellect (distinguished from experience or emotion)
Examples:

"a rational analysis"

Related terms: intellectual
Similar spelling:   rationale
  rationally
  rationalize
  rationality
  rationalist
  rationalism
  rationalise