different between indubitable vs undoubting

English

Etymology

in- +? dubitable

Pronunciation

• (UK) IPA^(key): /?n?dju?b?t?b?l/
• (US) IPA^(key): /?n?dub?t?b?l/

Adjective

indubitable (comparative more indubitable, superlative most indubitable)

1. clearly true; providing no possibility of doubt.

   The indubitable effect of the potion convinced many nonbelievers.

Synonyms

• undoubtable

Derived terms

• indubitably

Translations

Noun

indubitable (plural indubitables)

1. That which is indubitable.

   If we build logically upwards from a few indubitables, the whole system must remain correct.

French

Etymology

Borrowed from Late Latin ind?bit?bilis.

Pronunciation

• IPA^(key): /??.dy.bi.tabl/

Adjective

indubitable (plural indubitables)

1. indubitable

   Synonym: incontestable

Derived terms

• indubitablement

Further reading

• “indubitable” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Spanish

Adjective

indubitable (plural indubitables)

1. indubitable

English

Etymology

un- +? doubting

Adjective

undoubting (not comparable)

1. (of persons, states of mind, beliefs, etc.) Experiencing or harboring no doubts; entirely confident.
   • 1665, George Wither, Meditations on the Lord's Prayer, London, page 75:

     And we shall have an undoubting assurance that that this Kingdom is in such a measure within us, as will ripen to perfection in due time.

   • 1787, Jonathan Edwards, Treatise concerning the religious affections, New York, N.Y.: Robert Hodge, page 196:

     And God's declared design in all this is, that the heirs of the promises might have an undoubting hope.

   • 1919, Virginia Woolf, chapter XXIV, in Night and Day:

     It was the part of a gentleman to preserve a bearing that was, as far as he could make it, the bearing of an undoubting lover.

   • 2002 October 6, Mike Greenberg, “Guest, symphony an adept team”, in San Antonio Express-News, page 8B:

     This overstuffed, smug, showy and sentimental music can almost persuade when it is performed with undoubting conviction.

Derived terms

• undoubtingly

References

• Webster, Noah (1828) , “undoubting”, in An American Dictionary of the English Language
• Oxford English Dictionary, 2nd ed., 1989.
• Random House Webster's Unabridged Electronic Dictionary, 1987-1996.