Wiktionary
unmistakenly
adv. In an unmistaken way; validly or accurately.
Usage examples of "unmistakenly".
Chunks of mud as hard as if baked had scaled away, and what stood there was unmistakenly a figure — though certainly no monstrous one.
Though suffering agonizing pain that erupted from every nerve ending, her mind was unmistakenly clear on every aspect of how she came to be in this predicament.