Added 9 October 2026 unmistakeably adverb Categories: Obscure Words adverb ! Definition from Wiktionary (CC BY-SA). More about unmistakeably at Wordnik → Where our words come from → Alternative spelling of unmistakably. Related Words: unreservedlyunmistakablyunequivocallyunambiguouslyabsolutelyclearlyemphaticallyroundlyabundantlymistakeablyunnamablyunshakeably Back to today's word