50 entries under fast topic. ×
| earnestly(adverb, resolution, intensely, fiercely) | |
| severely(adverb, badly, completely, intensely) | |
| intensely(adverb, badly, severely, thoroughly) | |
| heavily(adverb, sprightly, severely, intensely) | |
| actively(adverb, sprightly, severely, intensely) | |
| hard(adverb, badly, severely, intensely) | |
| vigorously(adverb, intensely, fiercely, earnestly) | |
| animatedly(adverb, intensely, fiercely, vigorously) | |
| briskly(adverb, intensely, fiercely, vigorously) | |
| energetically(adverb, intensely, fiercely, vigorously) | |
| firmly(adverb, badly, severely, intensely) | |
| furiously(adverb, sprightly, severely, intensely) | |
| relentlessly(adverb, sprightly, severely, intensely) | |
| rigorously(adverb, badly, sprightly, intensely) | |
| spiritedly(adverb, intensely, fiercely, vigorously) | |
| steadfastly(adverb, intensely, fiercely, violently) | |
| strongly(adverb, sprightly, severely, intensely) | |
| vivaciously(adverb, intensely, fiercely, vigorously) | |
| angrily(adverb, sprightly, severely, intensely) | |
| boisterously(adverb, sprightly, severely, intensely) |
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| APA | Smart Define. (2016). seriously thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/seriously/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "seriously thesaurus" https://smartdefine.org/seriously/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, seriously thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/seriously/thesaurus/synonyms>. |
| MLA | Smart Define. "seriously thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/seriously/thesaurus/synonyms> |