- (n.) The doctrine that no fact or principle can be certainly known; the tenet that all knowledge is uncertain; Pyrrohonism; universal doubt; the position that no fact or truth, however worthy of confidence, can be established on philosophical grounds; critical investigation or inquiry, as opposed to the positive assumption or assertion of certain principles.
- (n.) A doubting of the truth of revelation or a denial of the divine origin of the Christian religion or of the being, perfections or truth of God.
- (n.) An undecided, inquiring state of mind; doubt; uncertainty.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). skepticism. Retrieved September 24, 2026, from http://smartdefine.org/skepticism/definitions/2062552 |
| Chicago | Webster's. 2011. "skepticism" http://smartdefine.org/skepticism/definitions/2062552 (accessed September 24, 2026). |
| Harvard | Webster's 2011, skepticism, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/skepticism/definitions/2062552>. |
| MLA | Webster's. "skepticism" 28 May 2011. Web. 24 September 2026. <http://smartdefine.org/skepticism/definitions/2062552> |