| big | |
| certainly | |
| desperately(adjective, adverb, badly, intensely, fiercely) | |
| devil | |
| essentially(adverb, quantity, enough, measurement, summing up) | |
| ever so(expression, idiom, greatness) | |
| fault | |
| hellishly | |
| incalculably | |
| incomparably(adverb, absolutely, very, really, completely) | |
| outrageously | |
| over(adjective, adverb, addition, very, more) | |
| overmuch(adverb, very, more, too, enormously) | |
| passionately(intensely, fiercely, powerfully, strongly, wildly) | |
| positively | |
| rarely(adverb, absolutely, very, severely, really) | |
| real(well, very, greatly, extraordinarily, rarely) | |
| sorely(adverb, quantity, enough, measurement, summing up) | |
| substantially | |
| superlatively(adverb, pretty, absolutely, very, really) |
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| APA | Smart Define. (2016). extremely thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/extremely/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "extremely thesaurus" https://smartdefine.org/extremely/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, extremely thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/extremely/thesaurus/synonyms>. |
| MLA | Smart Define. "extremely thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/extremely/thesaurus/synonyms> |