unsound

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Related to unsoundest: unsounded

un·sound

(ŭn-sound′)

adj. un·sound·er, un·sound·est

1. Not dependably strong or solid.

2. Not physically or mentally healthy.

3. Not true or logically valid; fallacious: an unsound conclusion.

un·sound′ly adv.

un·sound′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.

unsound

(ʌnˈsaʊnd)

adj

1. diseased, weak, or unstable: of unsound mind.

2. unreliable or fallacious: unsound advice.

3. lacking solidity, strength, or firmness: unsound foundations.

4. (Commerce) of doubtful financial or commercial viability: an unsound enterprise.

5. (Banking & Finance) of doubtful financial or commercial viability: an unsound enterprise.

6. (of fruit, timber, etc) not in an edible or usable condition

unˈsoundly adv

unˈsoundness n

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

un•sound

(ʌnˈsaʊnd)

adj. , -er, -est.

1. not sound; unhealthy or diseased, as the body or mind.

2. decayed or impaired, as timber or foods; defective.

3. not solid or firm, as foundations.

4. not well-founded or valid; fallacious: an unsound argument.

5. easily broken; light: unsound slumber.

6. not financially strong or secure: an unsound investment.

[1275–1325]

un•sound′ly, adv.

un•sound′ness, n.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Switch to new thesaurus

Adj.	1.	unsound - not in good condition; damaged or decayed; "an unsound foundation" sound - in good condition; free from defect or damage or decay; "a sound timber"; "the wall is sound"; "a sound foundation"
	2.	unsound - not sound financially; "unsound banking practices" broken - physically and forcibly separated into pieces or cracked or split; "a broken mirror"; "a broken tooth"; "a broken leg"; "his neck is broken" damaged - harmed or injured or spoiled; "I won't buy damaged goods"; "the storm left a wake of badly damaged buildings" unfit - not in good physical or mental condition; out of condition; "fat and very unfit"; "certified as unfit for army service"; "drunk and unfit for service" unhealthy - not in or exhibiting good health in body or mind; "unhealthy ulcers" injured - harmed; "injured soldiers"; "injured feelings" unwholesome - detrimental to physical or moral well-being; "unwholesome food"; "unwholesome habits like smoking" sound - financially secure and safe; "sound investments"; "a sound economy"
	3.	unsound - containing or based on a fallacy; "fallacious reasoning"; "an unsound argument" fallacious invalid - having no cogency or legal force; "invalid reasoning"; "an invalid driver's license"
	4.	unsound - suffering from severe mental illness; "of unsound mind" mentally ill, unstable insane - afflicted with or characteristic of mental derangement; "was declared insane"; "insane laughter"
	5.	unsound - physically unsound or diseased; "has a bad back"; "a bad heart"; "bad teeth"; "an unsound limb"; "unsound teeth" unfit, bad unhealthy - not in or exhibiting good health in body or mind; "unhealthy ulcers"
	6.	unsound - of e.g. advice undependable, unreliable - not worthy of reliance or trust; "in the early 1950s computers were large and expensive and unreliable"; "an undependable assistant"

unsound

adjective

1. flawed, faulty, weak, false, shaky, unreliable, invalid, defective, illogical, erroneous, specious, fallacious, ill-founded The thinking is muddled and fundamentally unsound.

2. unstable, shaky, insecure, unsafe, unreliable, flimsy, wobbly, tottering, rickety, unsteady, not solid The church was structurally unsound.
unstable strong, sound, safe, solid, stable, steady, reliable, sturdy

3. unhealthy, unstable, unbalanced, diseased, ill, weak, delicate, ailing, frail, defective, unwell, deranged, unhinged He was rejected as an army conscript as being of unsound mind.

Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

unsound

adjective

1. Not physically strong:

decrepit, delicate, feeble, flimsy, fragile, frail, infirm, insubstantial, puny, unsubstantial, weak, weakly.

2. Afflicted with or exhibiting irrationality and mental unsoundness:

brainsick, crazy, daft, demented, disordered, distraught, dotty, insane, lunatic, mad, maniac, maniacal, mentally ill, moonstruck, off, touched, unbalanced, wrong.

Informal: bonkers, cracked, daffy, gaga, loony.

Slang: bananas, batty, buggy, cuckoo, fruity, loco, nuts, nutty, screwy, wacky.

Chiefly British: crackers.

Law: non compos mentis.

Idioms: around the bend, crazy as a loon, mad as a hatter, not all there, nutty as a fruitcake, off one's head, off one's rocker, of unsound mind, out of one's mind, sick in the head, stark raving mad.

3. Containing fundamental errors in reasoning:

fallacious, false, illogical, invalid, sophistic, specious, spurious.

4. Containing an error or errors:

erroneous, fallacious, false, inaccurate, incorrect, mistaken, off, untrue, wrong.

Idioms: all wet, in error, off base, off the mark.

5. Not wise:

ill-advised, ill-considered, impolitic, imprudent, indiscreet, injudicious, unwise.

Translations

véreux

fallace insano

unsound

[ˈʌnˈsaʊnd] ADJ (in health) → malo; (in construction) → defectuoso; (= unstable) → poco sólido or estable; [argument] → poco sólido
of unsound mind (Jur) → mentalmente incapacitado
the book is unsound on some points → el libro yerra en algunos puntos, no hay que fiarse del libro en ciertos aspectos

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

unsound

[ˌʌnˈsaʊnd] adj

(= mistaken) [thinking, methods] → erroné(e); [policy] → peu judicieux/euse; [advice] → mauvais(e), peu judicieux/euse

(= unreliable) [person] → peu fiable, peu sûr(e); [company] → peu solide; [investment] → peu sûr(e)

(= not acceptable) environmentally unsound → nuisible à l'environnement

(= in poor condition) [building, foundations] → en mauvais état, peu solide

(LAW) to be of unsound mind → ne pas jouir de toutes ses facultés mentales

unsound

adj

heart, teeth → krank; health, gums → angegriffen; floorboards, timber → morsch; construction, design → unsolide; foundations, finances → unsicher, schwach; the ship was quite unsound → das Schiff war überhaupt nicht seetüchtig; structurally unsound (building) → bautechnische Mängel aufweisend attr

argument → nicht stichhaltig, anfechtbar; advice → unvernünftig; judgement → unzuverlässig; doctrine → unvertretbar; policy, move → unklug; (Jur) conviction → ungesichert; of unsound mind (Jur) → unzurechnungsfähig; politically unsound (person) → politisch unzuverlässig; policy → politisch unklug; ideologically/ecologically unsound → ideologisch/ökologisch nicht vertretbar; environmentally unsound → umweltschädlich; unsound banking procedures → heikle Bankgeschäfte pl; the company is unsound → die Firma steht auf schwachen Füßen; our financial position is unsound → unsere Finanzlage ist heikel; I’m unsound on French grammar → ich bin unsicher in französischer Grammatik; the book is unsound on some points → das Buch weist an einigen Stellen Schwächen auf; his views on this are unsound → seine Ansichten sind nicht vertretbar

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

unsound

[ʌnˈsaʊnd] adj (health) → debole, cagionevole; (in construction, floor, foundations) → malsicuro/a; (argument) → che non regge; (opinion) → poco fondato/a; (policy, advice) → poco sensato/a; (judgment, investment) → poco sicuro/a; (business) → poco solido/a
of unsound mind (Law) → non in pieno possesso delle proprie facoltà mentali