- Definitions|2
- Thesaurus|627
- Abbreviations|0
| rife | |
| riotous | |
| running over | |
| same | |
| sedulous | |
| shoreless | |
| stable(permanent, long-term, lifelong) | |
| staunch(adjective, strong, firm, certain, determined) | |
| steadfast | |
| steady(adjective, strong, firm, determined, persistent) | |
| stop at nothing | |
| strenuous | |
| strong(adjective, firm, determined, steady, constant) | |
| surefire | |
| teeming | |
| tenacious(adjective, strong, firm, determined, steady) | |
| till the cows come home(expression, idiom, permanent, long-term, lifelong) | |
| timeless(adjective, infinite) | |
| tremendous(adjective, endless, immense, infinite, unlimited) | |
| unapproachable(adjective, infinity) |
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| APA | Smart Define. (2015). inexhaustible thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/inexhaustible/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "inexhaustible thesaurus" https://smartdefine.org/inexhaustible/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2015, inexhaustible thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/inexhaustible/thesaurus/synonyms>. |
| MLA | Smart Define. "inexhaustible thesaurus" 13 April 2015. Web. 1 October 2026. <https://smartdefine.org/inexhaustible/thesaurus/synonyms> |