Seemingly

Adverb

 * 1) To appearances; apparently.
 * 2) * 1748, David Hume, Enquiries concerning the human understanding and concerning the principles of moral, Oxford University Press (1973), section 15:
 * an object, seemingly like those which we have experienced, may be attended with different or contrary effects.
 * 1) * 1816:, Emma, Volume 1 Chapter 8
 * Mr. Woodhouse at last was off; but Mr. Knightley, instead of being immediately off likewise, sat down again, seemingly inclined for more chat. He began speaking of Harriet, and speaking of her with more voluntary praise than Emma had ever heard before.

Derived terms

 * unseemingly

Thesaurus
allegedly, apparently, artificially, as it seems, as it were, assumably, assumedly, assumptively, at first sight, conceivably, erroneously, evidently, factitiously, falsely, feasibly, in name only, in seeming, nominally, officially, on the surface, ostensibly, outwardly, plausibly, possibly, presumably, presumedly, presumptively, prima facie, professedly, purportedly, quasi, reputedly, speciously, spuriously, superficially, supposably, supposedly, suppositionally, supposititiously, synthetically, to all appearances, to all seeming, to the eye, truthlessly, ungenuinely, unnaturally, untruly, unveraciously

Etymology
From.