admittedly
adverb
acceptedly, allowedly, assuredly, authentically, authoritatively, avowedly, certainly, concededly, confessedly, doubtlessly, genuinely, incontestably, incontrovertibly, indisputably, indubitably, irrefragably, irrefutably, surely, truly, undeniably, undoubtedly, unquestionably, validly, veritably
Burton's Legal Thesaurus.
William C. Burton.
2006