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English Lexicon

Supposititious

/səˌpɒz.ɪˈtɪʃ.əs/
adjectiveCEFR C2 (Proficient)Top #28400 frequency
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Comprehensive Definitions & Senses

2 senses
As adjective
  1. 1

    Fraudulently substituted or替代 for another, typically secretly or deceptively; spurious.

    "The historian discovered that the royal charter was supposititious, crafted centuries after the king's death."
  2. 2

    Hypothetical or based on supposition rather than established facts.

    "His argument rested entirely on supposititious premises that lacked empirical backing."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Latin 'suppositicius', meaning substituted or spurious, originating from 'suppositus', the past participle of 'supponere' (to put under or substitute). It entered English in the mid-16th century, initially retaining the legal sense of a fraudulently substituted child or document, later broadening to mean hypothetical or fictitious.

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