| Illinois | |
| Prairie State | |
| forty-nine | |
| Land of Lincoln | |
| 49 | |
| unhealthy | |
| 49th | |
| bad | |
| bedridden | |
| cardinal | |
| detrimental | |
| evil | |
| forty-niner | |
| infirm | |
| minatory | |
| nauseous | |
| nocuous | |
| ominous | |
| queasy | |
| ratty |
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| APA | Smart Define. (2013). il thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/il/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "il thesaurus" https://smartdefine.org/il/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2013, il thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/il/thesaurus/synonyms>. |
| MLA | Smart Define. "il thesaurus" 17 June 2013. Web. 20 September 2026. <https://smartdefine.org/il/thesaurus/synonyms> |