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doubtless

/ˈdʌʊ̯tləs/
adjective

  1. Characterized by or experiencing no doubt at all, certain; undoubted; undoubting.

  2. Free from fear or suspicion.

adverb

  1. Without doubt; very probably, in all likelihood; doubtlessly.

Synonymsindisputably, indubitably, undoubtedly, unquestionably, without a doubt

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