• Webster's Revised Unabridged Dictionary
    • v. t. & i Unriddle To read the riddle of; to solve or explain; as, to unriddle an enigma or a mystery. "And where you can't unriddle , learn to trust."
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Century Dictionary and Cyclopedia
    • unriddle To explain or tell something to.
    • unriddle To read the riddle of; solve or explain; interpret: as, to unriddle an enigma or mystery.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Unriddle un-rid′l to read the riddle of: to solve
    • ***


Webster's Revised Unabridged Dictionary
1st pref. un-, + riddle,


In literature:

Our readers may exercise their ingenuity in attempting to unriddle what follows.
"Early Reviews of English Poets" by John Louis Haney
Who ever can unriddle that mystery?
"The Ontario Readers: The High School Reader, 1886" by Ministry of Education
What she was hoping for was that the answer would unriddle the riddle, and bring rest and peace to her perplexed little mind.
"Chapters from My Autobiography" by Mark Twain
Death alone can unriddle death.
"The Works of Lord Byron, Volume 4" by Lord Byron
As there was yet no hostile appearance, we were impatient to have the cause unriddled.
"Journeys Through Bookland, Vol. 6" by Charles H. Sylvester
Woman, let us hope, will at last unriddle woman.
"Modern Women and What is Said of Them" by Anonymous
He was seconded by those that were too much interested, not to unriddle this Secret.
"The Works of Aphra Behn" by Aphra Behn
Irish mysteries are coming to be unriddled now, but there will be no unriddling of that.
"The Landleaguers" by Anthony Trollope
He's a perfect mystery, and the more I try to unriddle him the more he riddles me.
"Olla Podrida" by Frederick Marryat
The disappearance of the child was a mystery which no one could unriddle.
"Wilson's Tales of the Borders and of Scotland, Volume III" by Various