• Time-worn palaces, and the darkly doubtful water at their base
    Time-worn palaces, and the darkly doubtful water at their base
  • WordNet 3.6
    • n doubtfulness uncertainty about the truth or factuality or existence of something "the dubiousness of his claim","there is no question about the validity of the enterprise"
    • n doubtfulness the state of being unsure of something
    • ***

Additional illustrations & photos:

"Joseph is without doubt rent in pieces!" "Joseph is without doubt rent in pieces!"

Webster's Revised Unabridged Dictionary
    • Doubtfulness State of being doubtful.
    • Doubtfulness Uncertainty of event or issue.
    • Doubtfulness Uncertainty of meaning; ambiguity; indefiniteness. "The doubtfulness of his expressions."
    • ***
Century Dictionary and Cyclopedia
    • n doubtfulness A state of doubt or uncertainty of mind; dubiousness; suspense; instability of opinion.
    • n doubtfulness Ambiguity; uncertainty of meaning.
    • n doubtfulness Uncertainty of event or issue; indeterminateness of condition.
    • ***


  • Ralph Marston
    Ralph Marston
    “Your goals, minus your doubts, equal your reality.”
  • William Hazlitt
    “To give a reason for anything is to breed a doubt of it.”
  • Silvan Engel
    Silvan Engel
    “It is better to be silent, and be thought a fool, than to speak and remove all doubt.”
  • Source Unknown
    Source Unknown
    “I don't know whether to keep silent and let people think I am ignorant or open my mouth and release all doubts.”
  • Rami Belson
    Rami Belson
    “It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.”
  • Eric Hoffer
    “The suspicious mind believes more than it doubts. It believes in a formidable and ineradicable evil lurking in every person.”


Beyond a shadow of a doubt - If something's beyond a shadow of a doubt, then absolutely no doubts remain about it.
Cast doubt on - If you make other people not sure about a matter, then you have cast doubt on it.
Doubting Thomas - A Doubting Thomas is someone who only believes what they see themselves, not what they are told.


In literature:

It lay partly, no doubt, in his appearance; not, no, not at all, in his make-up.
"The Divine Fire" by May Sinclair
They do not doubt its truth any more than a thirsty camel doubts that presently it will come to a spring.
"Mr. Britling Sees It Through" by H. G. Wells
We shall, no doubt, see you before we start.
"The Lure of the North" by Harold Bindloss
The most afflicting of all doubts, doubt of himself, kept the young man tossing on his pillow for at least an hour.
"Queed" by Henry Sydnor Harrison
I doubt whether he would confirm this now.
"The Worst Journey in the World, Volumes 1 and 2" by Apsley Cherry-Garrard
There could be no doubt of his meaning.
"The Doctor's Dilemma" by Hesba Stretton
Carelessness, an evil spirit, doubt: these were the enemies.
"The Foundations of Japan" by J.W. Robertson Scott
They contain, no doubt, error and evil.
"Ten Great Religions" by James Freeman Clarke
To doubt one would have been, to doubt both.
"Varney the Vampire" by Thomas Preskett Prest
This great doubt of mine it behoveth thee to dispel.
"The Mahabharata of Krishna-Dwaipayana Vyasa, Volume 1"

In poetry:

"Lady, while the doubtful battle
Ebbs and flows upon the plains,
Here in sorrow, meek and idle,
Abu Midjan sits in chains.
"Abu Midjan" by Archibald Lampman
No, here he must no longer stay,
He feels his life run out,
His night is come, also the day
That makes him fear and doubt.
"Of Death" by John Bunyan
And room and stair show how that hand
Groped in eager doubt,
With needless weight of teasing timber
Matching his thought--
"Home For Love" by John Freeman
For by his side all doubt was dumb,
And terror ceased to foam;
No great sea-billows dared to come,
And tread the holy home.
"A Book of Dreams: Part I" by George MacDonald
Weary and weak and erring,
In sorrow and doubt and tears,
Shine through the mist and the darkness
Star of a thousand years!
"Christmas Hymn" by Kate Seymour Maclean
This is due to lack of mind,
Mind, without a will that counts;
Let the Negro think as man,
Then for him there is no doubts.
"To Think As A Man" by Marcus Mosiah Garvey

In news:

Unchanged, have always doubted Qatar.
Steve Nash doubtful as winless Lakers host Clippers.
No doubt there are plenty of plusses for the Astros early this season.
I doubt too many readers are inclined to hike in the 106° outdoor furnace known as July.
When in doubt at work, hum Hi-Ho, Hi-Ho, It's Off To Work We Go.
Yet another Australian Open campaign is in doubt due to injury -- she missed the 2002, 2004 and 2011 editions because she was hurt.
If you have any doubts about the real meaning of this month's midterm elections, let me refer you to the most notable winner in those contests.
This one was never in doubt.
There was no doubt Will Bruin deserved MLS Player of the Week after scoring his hat trick on Friday night.
God, gently and lovingly, you groom us-- brush the filth, doubt, hatred, and intolerance from us.
You are no doubt enjoying the new Korn/Skrillex collaborations "Get Up", "Narcissistic Cannibal" and soon "Chaos Lives In Everything.
Buck up Roger, and others who doubt Snowmass.
There's no doubting Beaver Falls sophomore Thomas.
Doubting Thomas by Glenn W Most.
Einstein's letter doubting God auctions for $3M.

In science:

As virtually none of the naturally motivated dynamical system can by entirely treated with analytical techniques, the necessity of numerical investigation is beyond doubt.
Ergodic Theory and Visualization II: Visualization of Resonances and Periodic Sets
This possibility would bring the generalised second law into doubt if applied to local horizons.
Black holes and black hole thermodynamics without event horizons
We may write just C (G; X) or even C (G) if there are no doubts on the action involved.
Second maximal subgroups of the finite alternating and symmetric groups
In this regime the validity of the linear constitutive relation is doubtful.
Challenging the generalized second law
Because cold mode halos have very little halo gas outside of the cold dense filaments, it is doubtful whether ejective feedback can drastically affect the accretion of gas.
Galaxies in a Simulated $\Lambda$CDM Universe II: Observable Properties and Constraints on Feedback