- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
| for sure(expression, idiom, adverb, sure, exactly) | |
| without doubt(expression, adjective, idiom, adverb, absolutely) | |
| yes(adverb, interjection, good, fine, true) | |
| sure(adjective, adverb, interjection, fine, certainty) | |
| decidedly | |
| for certain(expression, idiom, adverb, certainty, absolutely) | |
| indisputably(adverb, really, clearly, plainly, unquestionably) | |
| plainly | |
| actually(adverb, truth, absolutely, very, really) | |
| evidently | |
| exactly(adverb, interjection, assent, really, positively) | |
| most likely | |
| no doubt(expression, idiom, adverb, certainty, assent) | |
| precisely(adverb, good, fine, well, absolutely) | |
| unconditionally(adverb, absolutely, categorically) | |
| unqualifiedly(adverb, absolutely, categorically) | |
| without fail(expression, idiom, good, certainty, absolutely) | |
| by all means(expression, idiom, good, fine, really) | |
| incontrovertibly | |
| manifestly |
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| APA | Smart Define. (2016). certainly thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/certainly/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "certainly thesaurus" https://smartdefine.org/certainly/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, certainly thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/certainly/thesaurus/synonyms>. |
| MLA | Smart Define. "certainly thesaurus" 30 March 2016. Web. 22 September 2026. <https://smartdefine.org/certainly/thesaurus/synonyms> |