unmistakably
1. [ adverb ] without possibility of mistake
Examples:

"this watercolor is unmistakably a synthesis of nature"

Related terms: unmistakable unmistakable
2. [ adverb ] in a signal manner
Synonyms: remarkably signally
Examples:

"signally inappropriate methods"

Related terms: signal signal
Similar spelling:   unmistakable
  unsteadily
  unstoppable
  unsuitably
  unstableness