RATIOCINATIVE Antonyms

• proceeding from natural feeling or impulse without external stimulus

• without forethought

• having the power of driving or impelling

• determined by chance or impulse or whim rather than by necessity or reason

• characterized by undue haste and lack of thought or deliberation

• unthinking; prompted by (or as if by) instinct

• spontaneously derived from or prompted by a natural tendency

• obtained through intuition rather than from reasoning or observation

• not consistent with or using reason

• real but not expressible as the quotient of two integers

• a real number that cannot be expressed as a rational number

• not based on reason

• obtained through intuition rather than from reasoning or observation

• lacking systematic arrangement or method or organization

• in a thoughtless manner

• not exhibiting or characterized by careful thought

• without care or thought for others

• mentally sluggish

• Not reasoned; irrational.