1. (n.) Want of reason; unreasonableness; absurdity.

2. (v. t.) To undo, disprove, or refute by reasoning.

callowness childishness immaturity imprudence inadvisability inattention inconsideration indiscreetness indiscretion inexpedience injudiciousness irrationality pompousness puerility reasonlessness recklessness senselessness stuffiness thoughtlessness unintelligence unreasonableness unsensibleness unsoundness unthoughtfulness unwisdom unwiseness witlessness