58 entries under thorough topic. ×
| long(adjective, time, great, big, deep) | |
| full(adjective, open, great, complete, top) | |
| all-encompassing(adjective, complete, total, big, substantial) | |
| considerable(adjective, great, big, significant, substantial) | |
| sizable(adjective, open, great, big, substantial) | |
| all-inclusive(adjective, complete, specific, broad) | |
| commodious(adjective, open, great, substantial, large) | |
| encyclopedic(adjective, complete, full, broad) | |
| wholesale(adjective, big, common, large, grand) | |
| blanket(adjective, complete, informal, full) | |
| boundless(adjective, open, great, complete, big) | |
| catholic(adjective, complete, full, general) | |
| complete(adjective, total, big, common, full) | |
| prevalent(adjective, big, common, large, grand) | |
| major(adjective, big, substantial, large, grand) | |
| hefty(adjective, great, big, substantial, large) | |
| large-scale(adjective, big, substantial, large, grand) | |
| lengthy(adjective, great, big, deep, high) | |
| far-flung(adjective, big, large, grand, huge) | |
| in-depth(adjective, complete, total, unrestrained) |
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| APA | Smart Define. (2016). extensive thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/extensive/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "extensive thesaurus" https://smartdefine.org/extensive/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, extensive thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/extensive/thesaurus/synonyms>. |
| MLA | Smart Define. "extensive thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/extensive/thesaurus/synonyms> |