presumably

1 to all outward appearances presumably he's going on the trip for business reasons, but we have our doubts Synonyms evidently, ostensibly, ostensively, apparently, putatively, seemingly, supposedlyRelated Words externally, outwardly, visibly; believably, credibly; assumably, likely, presumedly, probably; conceivably, maybe, mayhap, perchance, perhaps, possibly, professedly, supposably; allegedly, purportedly, reportedly, reputedly; clearly, distinctly, manifestly, obviously, plainly, self-evidently; assuredly, positively, surelyNear Antonyms implausibly, impossibly, improbably, incredibly

2 by reasonable assumption presumably he'll come later Synonyms assumably, doubtless, likely, probablyRelated Words maybe, mayhap, perchance, perhaps, possibly; conceivably, imaginably, plausibly, practically, reasonably; potentially; assuredly, certainly, clearly, conclusively, decisively, definitely, definitively, indisputably, indubitably, positively, really, surely, truly, undeniably, undoubtedly, unquestionably; presumedly, supposably, supposedlyNear Antonyms implausibly, inconceivably, incredibly, unbelievably, unthinkablyAntonyms improbably