unfounded

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un·found·ed

 (ŭn-foun′dĭd)
adj.
Not based on fact or sound evidence; groundless: an unfounded allegation of wrongdoing. See Synonyms at baseless.

un·found′ed·ly adv.
un·found′ed·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

unfounded

(ʌnˈfaʊndɪd)
adj
1. (of ideas, allegations, etc) baseless; groundless
2. not yet founded or established
unˈfoundedly adv
unˈfoundedness n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

un•found•ed

(ʌnˈfaʊn dɪd)

adj.
1. not based on fact or reality; without foundation; groundless.
2. not established; not founded.
[1640–50]
un•found′ed•ly, adv.
un•found′ed•ness, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.unfounded - without a basis in reason or fact; "baseless gossip"; "the allegations proved groundless"; "idle fears"; "unfounded suspicions"; "unwarranted jealousy"
unsupported - not sustained or maintained by nonmaterial aid; "unsupported accusations"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

unfounded

adjective groundless, false, unjustified, unproven, unsubstantiated, idle, fabricated, spurious, trumped up, baseless, without foundation, without basis The allegations were totally unfounded.
proven, confirmed, justified, verified, factual, attested, substantiated
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

unfounded

adjective
Having no basis or foundation in fact:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations
لا أساس له من الصِّحَّه
neopodstatněnýnepodložený
ubegrundet
perusteeton
tilefnislaus, staîlaus
nedibinātsnepamatots

unfounded

[ˈʌnˈfaʊndɪd] ADJinfundado, sin fundamento
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

unfounded

[ˌʌnˈfaʊndɪd] adj [rumours, allegations, fears] → sans fondement
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

unfounded

adjunbegründet, nicht fundiert; suspicion alsogrundlos; rumour also, allegationsaus der Luft gegriffen; to prove (to be) unfoundedsich als unbegründet or grundlos erweisen
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

unfounded

[ʌnˈfaʊndɪd] adjinfondato/a, senza fondamento
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

unfounded

(anˈfaundid) adjective
not based on facts or reality. The rumours are completely unfounded.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in periodicals archive ?
From Kant's standpoint, the positing of these principles loses its unfoundedness or irrationality.
Several academics have since made similar observations [e.g., see Chambers, 1980; Sterling, 1988; Mattessich, 1995] and there have been no events to indicate the unfoundedness of these concerns.
It would seem that only the most blatant cases of abuse and the most evident cases of unfoundedness are likely to be stopped by the pre-preliminary filter of claims set out in Article 294.