unsubstantiated

Use Unsubstantiated in a sentence

un·sub·stan·ti·at·ed

[uhn-suhb-stan-shee-ey-tid]
adjective
1.
not substantiated; unproved or unverified: unsubstantiated allegations.
2.
being without form or substance.

Origin:
1765–75; un-1 + substantiate + -ed2

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
unsubstantiated (ˌʌnsəbˈstænʃɪˌeɪtɪd) [Click for IPA pronunciation guide]
 
adj
not established as valid or genuine: unsubstantiated allegations

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
00:10
Unsubstantiated has a plethora of syllables.
So is cyclotrimethylenetrinitramine. Does it mean:
the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
a white, crystalline, water-insoluble, powerful high explosive, C3H6N6O6, used chiefly in bombs and shells.
Example sentences
For the rest, your comments are fallacious and unsubstantiated pseudo-science.
Unsubstantiated reports do not have maltreatment data because by definition, no
  maltreatment was found to have occurred.
But they shouldn't use this kind of unsubstantiated scare tactic.
However, if you cannot withstand unsubstantiated criticisms such as this, you
  are certainly going to alienate readers.
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