undoubted

From Middle English undouted, undoutid, equivalent to un- +‎ doubted.

• IPA^(key): /ʌnˈdaʊtɪd/
• Hyphenation: un‧doubt‧ed

undoubted (comparative more undoubted, superlative most undoubted)

1. Without doubt; without question; certain.

   His undoubted skill meant that he was in much demand.

   • c. 1604–1605 (date written), William Shakespeare, “All’s VVell, that Ends VVell”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358, [Act II, scene i]:

     More should I question thee, and more I must,
     Though more to know could not be more to trust,
     From whence thou camest, how tended on: but rest
     Unquestion’d welcome and undoubted blest.

   • 1671, John Milton, “The First Book”, in Paradise Regain’d. A Poem. In IV Books. To which is Added, Samson Agonistes, London: […] J. M[acock] for John Starkey […], OCLC 228732398, lines 8–11, pages 1–2:

     Thou Spirit who ledſt this glorious Eremite
     Into the Deſert, his Victorious Field
     Againſt the Spiritual Foe, and broughtſt him thence
     By proof the undoubted Son of God, […]

   • 1813 January 27, [Jane Austen], chapter 12, in Pride and Prejudice, volume II, London: […] [George Sidney] for T[homas] Egerton […], OCLC 38659585:

     Of what he has particularly accused me I am ignorant; but of the truth of what I shall relate, I can summon more than one witness of undoubted veracity.

   • 1923, “Current Situation,” Time, 3 December, 1923,

     The place of psychology in business is undoubted; whether it can prevail against more concrete and material facts, and if so, how long, remain debatable propositions.

   • 2012 June 9, Owen Phillips, “Euro 2012: Netherlands 0-1 Denmark”, in BBC Sport‎:

     Netherlands, one of the pre-tournament favourites, combined their undoubted guile, creativity, pace and attacking quality with midfield grit and organisation.

• uncontested
• unquestioned
• undisputed
• doubtless

• undoubtedly