DOUBTLESS

adv. 1 doubtlessly, undoubtedly, no doubt, indubitably, indisputably, unquestionably, surely, for sure, certainly, for certain, naturally, without (a) doubt, beyond or without (a shadow of) a doubt, truly, positively, absolutely, Colloq absotively, posolutely, US make no mistake You doubtless remember my aunt? 2 probably, most or very likely, in all probability, supposedly, presumably: He will doubtless be refused entry into the country