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Definition of false adjective from the Oxford Advanced Learner's Dictionary

false

adjective
 
/fɔːls/
 
/fɔːls/
Idioms
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    not true

  1. wrong; not correct or true
    • A whale is a fish. True or false?
    • Predictions of an early improvement in the housing market proved false.
    • She gave false information to the insurance company.
    • He used a false name to get the job.
    • His career was ruined by false accusations.
    • The allegations are completely false.
    • This claim is simply false.
    • The law can punish knowingly false statements.
    Extra Examples
    • Lagos is the capital of Nigeria. True or false?
    • The gossip about her later proved to be entirely false.
    • Their claim was patently false.
    Oxford Collocations Dictionaryverbs
    • be
    • look
    • prove
    adverb
    • absolutely
    • completely
    • entirely
    phrases
    • true or false
    See full entry
  2. not natural

  3. not natural synonym artificial
    • false teeth/eyelashes
    • a false beard
  4. not real

  5. not real or what somebody claims it is, but made to look real to cheat people
    • He had been travelling with a false passport.
    • The case had a false bottom where documents or even a small radio could be hidden.
    Oxford Collocations Dictionaryverbs
    • be
    • look
    • prove
    adverb
    • absolutely
    • completely
    • entirely
    phrases
    • true or false
    See full entry
  6. wrong/not accurate

  7. [usually before noun] wrong or not accurate, because it is based on something that is not true or correct
    • a false argument/assumption/belief
    • to give a false impression of wealth
    • to lull somebody into a false sense of security (= make somebody feel safe when they are really in danger)
    • They didn't want to raise any false hopes, but they believed her husband had escaped capture.
    • Buying a cheap computer is a false economy (= will not actually save you money).
    • If you don't do the test right, it can lead to false positives.
    Extra Examples
    • We had been lulled into a false sense of security.
    • The couple had given the false impression of a blissfully happy marriage.
    • His argument is based on the false assumption that all women want children.
    • I don't want to raise any false hopes, but I think he's still alive.
    • Those who were thought to hold false beliefs were persecuted.
  8. not sincere

  9. (of people’s behaviour) not real or sincere
    • false modesty
    • She flashed him a false smile of congratulation.
    Extra Examples
    • Helen's voice sounded slightly false.
    • I managed a horribly false smile.
    • She gave a tinkly little laugh, which sounded horribly false even to her own ears.
    • Come on—this is no time for false modesty.
    Topics Personal qualitiesb2
    Oxford Collocations Dictionaryverbs
    • be
    • ring
    • sound
    adverb
    • very
    • slightly
    See full entry
  10. not faithful

  11. (literary) (of people) not faithful
    • a false lover
  12. Word OriginOld English fals ‘fraud, deceit’, from Latin falsum ‘fraud’, neuter past participle of fallere ‘deceive’; reinforced or re-formed in Middle English from Old French fals, faus ‘false’.
Idioms
by/under/on false pretences
  1. by pretending to be something that you are not, in order to gain some advantage for yourself
    • She was accused of obtaining money under false pretences.
Synonyms artificialartificialsynthetic false man-made fake imitationThese words all describe things that are not real, or not naturally produced or grown.artificial made or produced to copy something natural; not real:
  • artificial flowers
  • artificial light
synthetic made by combining chemical substances rather than being produced naturally by plants or animals:
  • synthetic drugs
  • shoes with synthetic soles
false not natural:
  • false teeth
  • a false beard
man-made made by people; not natural:
  • man-made fibres such as nylon
fake made to look like something else; not real:
  • a fake-fur jacket
imitation [only before noun] made to look like something else; not real:
  • She would never wear imitation pearls.
Patterns
  • artificial/​synthetic/​man-made fabrics/​fibres/​materials/​products
  • artificial/​synthetic/​fake/​imitation fur/​leather
  • artificial/​synthetic/​false/​fake/​imitation diamonds/​pearls
ring true/hollow/false
  1. to give the impression of being sincere/true or not sincere/true
    • It may seem a strange story but it rings true to me.
    • His expressions of support rang rather hollow.
    • His promise rang hollow.
See false in the Oxford Advanced American DictionarySee false in the Oxford Learner's Dictionary of Academic English
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