Falsely

(adv.) In a false manner; erroneously; not truly; perfidiously or treacherously.

Thesaurus Entries

amiss, apparently, artificially, astray, beguilingly, deceptively, delusively, erroneously, factitiously, fallaciously, faultfully, faultily, in disguise, in name only, misleadingly, mistakenly, nominally, ostensibly, plausibly, seemingly, spuriously, synthetically, trickily, truthlessly, under cover of, under false colors, ungenuinely, unnaturally, untrue, untruly, unveraciously, wrong, wrongly