- (a.) Apt to adhere to another substance; glutinous; viscous; sticking; adhesive.
- (a.) Apt to retain; retentive; as, a tenacious memory.
- (a.) Niggardly; closefisted; miserly.
- (a.) Holding fast or inclined to hold fast; inclined to retain what is in possession; as, men tenacious of their just rights.
- (a.) Holding stoutly to one's opinion or purpose; obstinate; stubborn.
- (a.) Having parts apt to adhere to each other; cohesive; tough; as, steel is a tenacious metal; tar is more tenacious than oil.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). tenacious. Retrieved September 20, 2026, from http://smartdefine.org/tenacious/definitions/2071080 |
| Chicago | Webster's. 2011. "tenacious" http://smartdefine.org/tenacious/definitions/2071080 (accessed September 20, 2026). |
| Harvard | Webster's 2011, tenacious, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/tenacious/definitions/2071080>. |
| MLA | Webster's. "tenacious" 28 May 2011. Web. 20 September 2026. <http://smartdefine.org/tenacious/definitions/2071080> |