different between false vs unsound

English

Etymology

From Middle English false, fals, from Old English fals (“false; counterfeit; fraudulent; wrong; mistaken”), from Latin falsus (“counterfeit, false; falsehood”), perfect passive participle of fall? (“deceive”). Reinforced in Middle English by Anglo-Norman and Old French fals, faus. Compare Scots fals, false, Saterland Frisian falsk, German falsch, Dutch vals, Swedish and Danish falsk; all from Latin falsus. Displaced native Middle English les, lese, from Old English l?as (“false”); See lease, leasing. Doublet of faux.

Pronunciation

• (UK, General New Zealand, General Australian) IPA^(key): /f??ls/, /f?ls/
• (General American) IPA^(key): /f?ls/, /f?ls/

Adjective

false (comparative falser, superlative falsest)

1. Untrue, not factual, factually incorrect.
2. Based on factually incorrect premises.

3. Spurious, artificial.
4. (logic) Of a state in Boolean logic that indicates a negative result.
5. Uttering falsehood; dishonest or deceitful.

6. Not faithful or loyal, as to obligations, allegiance, vows, etc.; untrue; treacherous.
7. Not well founded; not firm or trustworthy; erroneous.
8. Not essential or permanent, as parts of a structure which are temporary or supplemental.
9. Used in the vernacular name of a species (or group of species) together with the name of another species to which it is similar in appearance.

10. (music) Out of tune.

Synonyms

• lease
• See also Thesaurus:false

Antonyms

• (untrue): real, true

Derived terms

Translations

Adverb

false (comparative more false, superlative most false)

1. in a dishonest and disloyal way; falsely.

Noun

false (plural falses)

1. One of two options on a true-or-false test.

Anagrams

• A.S.L.E.F., Leafs, alefs, fasel, feals, fleas, leafs, lefsa

Italian

Adjective

false f pl

1. feminine plural of falso

Latin

Noun

false

1. vocative singular of falsus

References

• false in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• false in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
• false in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette

Spanish

Verb

false

1. Formal second-person singular (usted) imperative form of falsar.
2. First-person singular (yo) present subjunctive form of falsar.
3. Formal second-person singular (usted) present subjunctive form of falsar.
4. Third-person singular (él, ella, also used with usted^?) present subjunctive form of falsar.

English

Etymology

un- +? sound.

Pronunciation

• enPR: ?n-sound?, IPA^(key): /??n?sa?nd/
• Rhymes: -a?nd

Adjective

unsound (comparative more unsound or unsounder, superlative most unsound or unsoundest)

1. Not sound, particularly:
   1. Not whole, not solid, defective.
   2. (especially of equestrianism) Infirm, diseased.
   3. (Britain, especially of people) Not good, unreliable.
      • 1919, P.G. Wodehouse, My Man Jeeves:

        You would not like Nietzsche, sir. He is fundamentally unsound.

Antonyms

• sound

Derived terms

• unsoundly
• unsoundness