1. a philosophical position that emphasizes intuition, emotion, or faith over reason and logical thinking
Usage: philosophy
2. the practice or tendency of acting without rational thought or logical reasoning

Examples

• The philosopher criticized irrationalism as a dangerous departure from scientific thinking.
• Some religious movements embrace irrationalism, valuing faith over empirical evidence.
• The rise of irrationalism in politics concerns many educators.
• His irrationalism led him to make decisions based purely on gut feelings.
• The debate between rationalism and irrationalism has persisted for centuries.
• Critics argue that irrationalism undermines the foundations of modern science.