Synonyms of 'assuredly'

absolutely, actually, all right, alright, amen, aye, certainly, clearly, decidedly, decisively, definitely, distinctly, exactly, fine, forsooth, good, hear, indeed, ja, naturally, okay, oui, patently, positively, precisely, quite, rather, really, right, righto, Roger, seriously, sure, surely, sure thing, truly, verily, yea, yeah, yep, yes