• Webster's Revised Unabridged Dictionary
    • v. t Undecide To reverse or recant, as a previous decision.
    • ***
Century Dictionary and Cyclopedia
    • undecide To reverse a decision concerning.
    • ***


  • Winston Churchill
    “They are decided only to be undecided, resolved to be irresolute, adamant for drift, solid for fluidity, all-powerful to be impotent.”
  • Laurence J. Peter
    “Some problems are so complex that you have to be highly intelligent and well informed just to be undecided about them.”


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


In literature:

Now that I had found this water I was undecided what to do.
"Australia Twice Traversed, The Romance of Exploration" by Ernest Giles
You may say I am undecided whether to buy or charter.
"A Rock in the Baltic" by Robert Barr
Deeply concerned, I stood on the corner of a narrow street or alley, undecided what to do.
"True to Himself" by Edward Stratemeyer
Blakeney was quietly watching the young girl as she stood in the doorway, a little bashful and undecided.
"I Will Repay" by Baroness Emmuska Orczy
Alicia leaned back among the cushions and regarded the other with an undecided eye.
"The Path of a Star" by Mrs. Everard Cotes (AKA Sara Jeannette Duncan)
At first undecided as to his movements, he took a flat in the mansion in Rue Saint-Lazare, which belonged to Princess d'Orviedo.
"A Zola Dictionary" by J. G. Patterson
It was nearly one when she went to her mother and even then she was undecided.
"The American Senator" by Anthony Trollope
For a while he sat there in his black mood, undecided whether he should go to his uncle's cabin or go on home.
"The Trail of the Lonesome Pine" by John Fox, Jr.
Carrington suddenly remembered that he had some thought of starting north in the morning himself, but he was still undecided.
"The Prodigal Judge" by Vaughan Kester
After a scattered fire the Southern force withdrew some distance, where it halted, apparently undecided.
"The Guns of Shiloh" by Joseph A. Altsheler

In poetry:

A truckling—vacillating course,—
Unmanly, undecided;—
His little puny soul is worse
Than sixpence twice divided!
"No Enemies" by Benjamin Cutler Clark
Watchers have discovered paradise in your cheeks,
But I am undecided,
For there is a hint of the tops of flames
In their purple shining.
"Because The Good Are Never Fair" by Edward Powys Mathers
It is not to diffuse you that you were born of your mother and
father—it is to identify you;
It is not that you should be undecided, but that you should be
"To Think Of Time" by Walt Whitman
THE village lawyer, Oudinet, was brought;
From him, who drew the contract, truth was sought;
There rests the cause, for 'tis of recent date;
While undecided, more we cannot state.
"The Truckers" by Jean de La Fontaine
"As well. Just so. Not worse, not better. No,
Next morning found the Nation still divided;
Since all were slain, the inference is plain
They left the point they fought for undecided."
"How To Not Settle It" by Oliver Wendell Holmes
Long undecided lay th' important choice,
Till of the beauteous court, at length, a voice
Pronounced the name of HOPE:—The conscious child
Stretched forth his little arms, and smiled.
"The Birth Of Love" by William Wordsworth

In news:

Despite what you read, it probably had little to do with wooing undecided Jewish voters.
How there can still be some undecided voters is beyond me, but there are.
OT still undecided about senior year.
Undecided on 'Electoral Dysfunction '.
Bob Rae is looking forward to resuming life as a "regular" MP once his two-year stint as interim Liberal leader is done, but he's undecided whether to seek re-election in 2015.
Aaron Murray says he's still undecided.
Poll finds 9% undecided voters could decide Question 7.
A new poll from Ball State University finds the public evenly divided, with 45% supporting same-sex marriage, 45% opposed and 10% undecided.
Likely voters appear to be undecided about other state races.
Ward 3, Position 2 Race Between Watson, Powers Still Undecided.
Backers of Prop 34 target the still-high number of undecided voters.
Undecided voters asked questions during a town hall format.
With Belle Isle's future undecided, a Michigan winemaker and his business partner are reseeding the idea of an urban vineyard on the island.
A new survey tells us undecided voters have already decided.
Undecided voters tuning in to the final Presidential debate on Monday can rely on more than their intuition to determine the winner.

In science:

This is decidable for developments, but undecidable for β -reduction .
A Note on Shortest Developments
One of the central questions (undecided so far) has been whether for N ≫ 1 the spectral fluctuation properties of EGUE(2) are GUE– like.
Spectral fluctuation properties of constrained unitary ensembles of Gaussian-distributed random matrices
EGUE(2) than it is for a banded random matrix, and the question remains undecided.
Spectral fluctuation properties of constrained unitary ensembles of Gaussian-distributed random matrices
Observe, that the malnormality problem is decidable in free groups, but is undecidable in torsion-free hyperbolic groups - Bridson and Wise constructed corresponding examples.
Equations and fully residually free groups
In physics, analogous arguments embedding a universal computer into a physical substrate yield provable undecidable observables via reduction to the halting problem.
Indeterminism and Randomness Through Physics