| absolutely(adverb, certain, limited, very, really) |
| positively(adverb, certain, limited, absolutely, very) |
| undoubtedly(adverb, certain, limited, certainly) |
| indubitably(adverb, certainly) |
| surely(adverb, absolutely, very, really, certainly) |
| unquestionably(adverb, certainly) |
| definitely(adverb, absolutely, really, exactly, certainly) |
| doubtless(adverb, certain, limited, absolutely, certainly) |
| certainly(adverb, certain, limited, certainly) |
| assuredly(adverb, certainly) |
| beyond question(expression, adverb, absolutely, really, exactly) |
| no doubt(expression, idiom, adverb, certainly, clearly) |
| presumably(adverb, likely, reasonably, probably) |
| sincerely(adverb, absolutely, very, really, seriously) |
| unequivocally(adverb, absolutely, really, certainly, clearly) |
| in all probability(expression, idiom, adverb, probably, presumably) |
| indisputably(adverb, certainly) |
| irrefragably(adverb, certainly) |
| likely(adverb, probably, presumably) |
| probably(adverb, really, certainly, clearly, definitely) |