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語源

First attested in 1425–1475, in 中期英語; from 中期英語 illiterat(e) (“uneducated, ignorant of Latin”), borrowed from Latin illīterātus, illitterātus (“unlearned, ignorant”), itself from in- (“un-”) + līterātus, litterātus (“furnished with letters”) (see -ate (adjective-forming suffix)), from lītera, littera (“letter, character”). The noun was derived from the adjective by substantivization, see -ate (noun-forming suffix).

発音

• IPA: /ɪˈlɪtəɹət/, /ɪˈlɪtɹət/

形容詞

illiterate (comparative more illiterate, superlative most illiterate)

1. Unable to read and write.

   Coordinate terms: semiliterate, subliterate

   About half of the population in Ethiopia is illiterate.

   • 1647, Theodore de la Guard [pseudonym; Nathaniel Ward], The Simple Cobler of Aggawam in America. […], London: […] J[ohn] D[ever] & R[obert] I[bbitson] for Stephen Bowtell, […], →OCLC, page 37:

     If publique Aſſemblies of Divines cannot agree upon a right vvay, private Conventicles of illeterate men, vvill ſoon finde a vvrong. Bivious demurres breed devious reſolutions. Paſſengers to heaven are in haſte, and vvill vvalk one vvay or other.

   • 1953 November, 'Erca', “Ticket Frauds in the East”, in Railway Magazine, page 780:

     Not always does this ruse succeed however. The railways have undertaken publicity warning passengers about it, and have made a big difference in the appearance of long distance and short distance tickets, so that the most illiterate person can see the distinction. Some of these swindlers have been caught.

2. Having less than an expected standard of familiarity with language and literature, or having little formal education.
   • 1722, William Wollaston, “Sect. V. Truths relating to the Deity. Of his exiſtence, perfection, providence, &c.”, in The Religion of Nature Delineated‎, page 81:

     Ignorant and ſuperſtitious wretches meaſure the actions of letterd and philoſophical men by the tattle of their nurſes or illiterate parents and companions, or by the faſhion of the country : and people of differing religions judge and condemn each other by their own tenents ; when both of them cannot be in the right, and it is well if either of them are.

   • 2021 September 15, Vivian Balakrishnan, Singapore Parliament debates on 15 September 2021‎:

     He's illiterate […] Seriously, how did he get into RI?

3. Not conforming to prescribed standards of speech or writing.
   • 1908, “lay v.¹”, in James A. H. Murray et al., editors, A New English Dictionary on Historical Principles (Oxford English Dictionary), volume VI, Part 1, London: Clarendon Press, →OCLC, page 128:

     Now (exc. in Nautical language, see b) it is only dialectal or an illiterate substitute for lie, its identity of form with the past tense of the latter no doubt accounting largely for the confusion.

4. Ignorant in a specified way or about a specified subject.

   technologically illiterate, economically illiterate, emotionally illiterate

同意語

• analphabetic
• ignorant
• uncharactered (obsolete)
• unlettered

反意語

• literate

派生語

参考

• innumerate (adjective)
• numerate (adjective)

名詞

illiterate (plural illiterates)

1. An illiterate person, one either not able to read and write or not knowing how.
   • 1993, Octavia E. Butler, Parable of the Sower, HEADLINE PUBLISHING GROUP (2019), page 210:

     We might also provide education plus reading and writing services to adult illiterates.

2. A person ignorant about a given subject. (The relevant subject is usually named as a noun adjunct.)

   Hyponym: innumerate

   Their government is run by business illiterates.

   Sometimes a mathematical illiterate is called an innumerate.

同意語

• analphabet
• analphabetic (noun)

参考

• innumerate (noun)
• numerate (noun)

参照

• Douglas Harper (2001–2026), “illiterate”, in Online Etymology Dictionary.