unfounded

[ uhn-foun-did ]

/ ʌnˈfaʊn dɪd /

SEE MORE SYNONYMS FOR unfounded ON THESAURUS.COM

adjective

without foundation; not based on fact, realistic considerations, or the like: unfounded suspicions.

not established; not founded: the prophet of a religion as yet unfounded.

RELATED WORDS

Nearby words

unformatted, unformed, unforthcoming, unfortunate, unfortunately, unfounded, unfranked income, unfreeze, unfrequented, unfriend, unfriended

Origin of unfounded

First recorded in 1640–50; un-¹ + found² + -ed²

SYNONYMS FOR unfounded

1 groundless, idle, false, unjustified, unsubstantiated.

SEE MORE SYNONYMS FOR unfounded ON THESAURUS.COM

Related formsun·found·ed·ly, adverbun·found·ed·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unfounded

In this, I would later figure out that both of those concerns were unfounded.
Neil deGrasse Tyson Breaks Down ‘Interstellar’: Black Holes, Time Dilations, and Massive Waves|Marlow Stern|November 11, 2014|DAILY BEAST
But it is unfounded fear by an American public at minimal risk of contracting the illness that is confounding those efforts.
Quarantine Turns Ebola Heroes Into Pariahs|Russell Saunders|October 28, 2014|DAILY BEAST
Health officials , doctors and researchers roundly agree that these concerns are unfounded.
Mississippi: Last In Everything, First In Vaccinations|Brandy Zadrozny|October 17, 2014|DAILY BEAST
One might wonder if Mario thinks that Judge Rakoff, too, had reached an “outrageous, unfounded conclusion” about his son.
Andrew Cuomo’s Do-Gooders Done Wrong|Lloyd Green|July 28, 2014|DAILY BEAST

Barry described the reports of him having affairs as “unfounded” and “crazy.”
Speed Read: Marion Barry’s Crazy Memoir|William O’Connor|June 18, 2014|DAILY BEAST
He asserts, and no doubt with perfect truth, that these were unfounded.
Historic Oddities|Sabine Baring-Gould
This report of the provisions of the city appeared, in the sequel, to be unfounded.
Journal of a Residence at Bagdad|Anthony Groves
I can trust you, Antoinette; I shall have no suspicion, no unfounded jealousy of you.
The Duchesse de Langeais|Honore de Balzac
I beg the owners of dogs not to be led away by so unfounded an opinion.
The Dog|Dinks, Mayhew, and Hutchinson
Such is often fictitious and unfounded altogether, and should be treated with marked silence.
Irene Iddesleigh|Amanda McKittrick Ros

British Dictionary definitions for unfounded

unfounded

/ (ʌnˈfaʊndɪd) /

adjective

(of ideas, allegations, etc) baseless; groundless

not yet founded or established

Derived Formsunfoundedly, adverbunfoundedness, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012