• WordNet 3.6
    • adj disreputable lacking respectability in character or behavior or appearance
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Webster's Revised Unabridged Dictionary
    • a Disreputable Not reputable; of bad repute; not in esteem; dishonorable; disgracing the reputation; tending to bring into disesteem; as, it is disreputable to associate familiarly with the mean, the lewd, and the profane. "Why should you think that conduct disreputable in priests which you probably consider as laudable in yourself?"
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Century Dictionary and Cyclopedia
    • disreputable Not reputable; having a bad reputation: as, a disreputable person.
    • disreputable Bringing into ill repute; discreditable; dishonorable: as, a disreputable act.
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Chambers's Twentieth Century Dictionary
    • adj Disreputable in bad repute: disgraceful
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In literature:

Our girls, with their free frank ways and their liberty of speech and action, are so many disreputable horrors in Parisian eyes.
"Lippincott's Magazine, Vol. XVII, No. 99, March, 1876" by Various
They have fallen into disrepute.
"Mince Pie" by Christopher Darlington Morley
A very seedy and disreputable looking man passed, evidently regarding us with apprehension as detectives.
"Shandygaff" by Christopher Morley
He came walking into Colman's office one morning looking cheerful but somewhat disreputable.
"Lippincott's Magazine. Vol. XII, No. 33. December, 1873." by Various
The mammoth sleigh went at a disreputably low speed.
"Overland through Asia; Pictures of Siberian, Chinese, and Tartar Life" by Thomas Wallace Knox
The boys were marched a short distance up the deserted street to a disreputable looking shanty.
"Boy Scouts in Southern Waters" by G. Harvey Ralphson
But these, aside from the disreputable little gill-netter, were all the craft that met their gaze.
"The Adventure Club Afloat" by Ralph Henry Barbour
Her father formed disreputable connections.
"Brave Men and Women" by O.E. Fuller
Such a disreputable, out-of-elbow, cosmopolitan bear!
"The Divine Fire" by May Sinclair
When we came to compare backs, after leaving the cave, we mutually found that they were in a very disreputable condition.
"Ice-Caves of France and Switzerland" by George Forrest Browne

In poetry:

"Oh, holy father," ALICE said, "'t would grieve you, would it not,
To discover that I was a most disreputable lot?
Of all unhappy sinners I'm the most unhappy one!"
The padre said, "Whatever have you been and gone and done?"
"Gentle Alice Brown" by William Schwenck Gilbert

In news:

So devil may care, so deliciously disreputable, so louche.
The dashing Roman detective Aurelio Zen is stuck in the hot seat when an important aristocratic family's disreputable son falls to his death from a bridge over the Tiber River.
The Long and Disreputable History of Repressing the Black Vote.
Wade calls for investigation of ' disreputable ' campaign calls.
Grindhouse is the generic name for exploitation flicks and the disreputable theaters that showed them.
For nearly 25 years now, the idea that it might be possible to extract unlimited amounts of energy from the nucleus of a hydrogen atom at low temperatures has been pretty much in disrepute.
As a disreputable pastime, mahjong doesn't draw as much attention as racing sports or pachinko probably because as a game it's relatively low key and whatever gambling goes on is between friends.
The US Navy SEAL operation that killed Osama bin Laden last May threw the Pakistan Army into international disrepute.
Skunk hour, in Robert Lowell's well-known poem, is a time of jaunty, disreputable defiance.
Military law says cheating on a spouse is not only disreputable, it's a crime.
"Raiders of the Lost Ark": Still Joyously Disreputable in IMAX.
Court of Judicial Discipline finds lewd cell phone photo a matter of 'disrepute'.
I've found some to be disreputable and others to be highly principled.
As I wrote earlier, there is a disreputable modern American Jewish tradition of attempting to use Jewish liturgy and especially the Passover seder as an excuse to promote non-Jewish political issues.
It is the artists themselves, obliged to become administrators, who are forced to regard the practice of art as a vanishing , and even a disreputable, luxury in a country whose energies and judgments have become exclusively social.

In science:

In spite of Chall’s warnings about injudicious application to writing tasks, readability measurement has naively come to be used as a prescriptive metric of good writing as a tool for writers, and has thus come into some disrepute among text researchers.
Recognizing Text Genres with Simple Metrics Using Discriminant Analysis
Chang [DC]: “ a topic now in disrepute due to its difficulty”.
Estimates of Lebesgue constants via Fourier transforms. Many dimensions
No one with whom I spoke in the department knew anything about this stuff that involved “superspace” and “superfields.” Worse yet, it seemed as though it was slightly disreputable to work on this fanciful topic especially when there was ‘real physics’ to be done.
Basic Canon in D=4, N=1 Superfield Theory: Five Primer Lectures