1) Apparently 2) Clearly 3) Distinctly 4) Evidently 5) Flatly 6) Manifestly 7) Obviously 8) Patently 9) Plain 10) Plainly 11) Signally 1) Clearly 2) Decidedly 3) Definitely 4) Explicitly 5) In a signal manner 6) Remarkably 7) Signally 8) Unequivocally 
[adv] - without possibility of mistake
adverb without possibility of mistake; `this watercolor is unmistakably a synthesis of nature`