| guideline | |
| guiding principle | |
| handle(noun, name, style, sign, brand) | |
| hanger | |
| hard and fast(expression, idiom) | |
| heavy(great, extraordinary, unusual, outstanding, serious) | |
| high-profile(adjective, unusual, outstanding, serious, prominent) | |
| historic(adjective, great, extraordinary, outstanding, notable) | |
| illustrious(adjective, great, extraordinary, outstanding, prominent) | |
| imperative | |
| impressive(adjective, great, extraordinary, outstanding, notable) | |
| indelible(great, extraordinary, outstanding, notable, unforgettable) | |
| indication | |
| inflame | |
| inflamed | |
| inscription(noun, name, head, key, title) | |
| institution | |
| instructions(noun, manual, rules, recipe) | |
| instructive | |
| interesting(great, extraordinary, outstanding, notable, unforgettable) |
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| APA | Smart Define. (2015). rubric thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/rubric/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rubric thesaurus" https://smartdefine.org/rubric/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, rubric thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/rubric/thesaurus/synonyms>. |
| MLA | Smart Define. "rubric thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/rubric/thesaurus/synonyms> |