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Synonyms

ignorant

American  
[ig-ner-uhnt] / ˈɪg nər ənt /

adjective

  1. lacking in knowledge or training; unlearned.

    Although he was an ignorant man, he was very excited to learn.

    Synonyms:
    untaught, untutored, uninstructed
    Antonyms:
    literate
  2. lacking knowledge or information as to a particular subject or fact.

    I admit I'm entirely ignorant of quantum physics.

    Synonyms:
    unenlightened
    Antonyms:
    learned
  3. uninformed; unaware.

    You'd have to be pretty ignorant not to have heard this news.

  4. due to or showing lack of knowledge or training.

    Everyone makes an ignorant statement or two when they're first starting out.


ignorant British  
/ ˈɪɡnərənt /

adjective

  1. lacking in knowledge or education; unenlightened

  2. lacking in awareness or knowledge (of)

    ignorant of the law

  3. resulting from or showing lack of knowledge or awareness

    an ignorant remark

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Commonly Confused

See stupid ( def. ).

Related Words

Ignorant, illiterate, unlettered, uneducated mean lacking in knowledge or in training. Ignorant may mean knowing little or nothing, or it may mean uninformed about a particular subject: An ignorant person can be dangerous. I confess I'm ignorant of mathematics. Illiterate originally meant lacking a knowledge of literature or similar learning, but is most often applied now to one unable to read or write: necessary training for illiterate soldiers. Unlettered emphasizes the idea of being without knowledge of literature: unlettered though highly trained in science. Uneducated refers especially to lack of schooling or to lack of access to a body of knowledge equivalent to that learned in schools: uneducated but highly intelligent. None of these words mean "lacking in intelligence."

Other Word Forms

  • ignorantly adverb
  • nonignorant adjective
  • nonignorantly adverb
  • quasi-ignorant adjective
  • quasi-ignorantly adverb
  • self-ignorant adjective
  • superignorant adjective
  • superignorantly adverb
  • unignorant adjective
  • unignorantly adverb

Etymology

Origin of ignorant

First recorded in 1325–75; Middle English ignora(u)nt, from Latin ignōrant-, stem of ignōrāns “not knowing,” present participle of ignōrāre “to not know”; ignore ( def. ), -ant ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Ohtani threw his cap and glove in a rare show of emotion, setting off a wild and sincere celebration as my ignorant self finally realized, “Hey, this is a thing.”

From Los Angeles Times • Mar. 15, 2026

Often, they "are ignorant of the history" of French colonisation -- even their ban on speaking native Ivorian languages in schools, he added.

From Barron's • Feb. 20, 2026

Understandable, but ignorant of the way things are.

From BBC • Feb. 6, 2026

At the remove of 2½ centuries, that concern seems quaint, for today the real question may be whether the country can prosper if its citizens are ignorant and unlettered.

From The Wall Street Journal • Jan. 16, 2026

They did not quite know what to say or do, as they were ignorant of the amount of my knowledge; so they had to keep on neutral subjects.

From "Dracula" by Bram Stoker