ignorance

noun

ig·​no·​rance ˈig-n(ə-)rən(t)s 

: the state or fact of being ignorant : lack of knowledge, education, or awareness

Ignorance of the law is no excuse for violating it.

made decisions in ignorance of [=without knowing] the true situation

Synonyms of ignorance

• unfamiliarity
• innocence
• unawareness
• cluelessness
• nescience
• obliviousness

Examples of ignorance in a Sentence

His racist attitudes were born out of ignorance.

an appalling ignorance about other cultures

Recent Examples on the Web

The firehose of the same few examples in high school and college sports being blasted ad nauseam is not evidence of anything but the power of fear and ignorance of biology. — Arkansas Online, 4 Nov. 2026

Macca shot back as Poehler feigned ignorance and let out a laugh. — Gil Kaufman, Billboard, 13 Oct. 2026

But disagreement does not necessarily mean that one side possesses wisdom while the other possesses ignorance or evil. — Rabbi Bruce D. Forman, Sun Sentinel, 13 Oct. 2026

This kind of ignorance also protected us, to a certain extent. — Baptiste Mandrillon, Time, 7 Oct. 2026

Word History

First Known Use

13th century, in the meaning defined above

Phrases Containing ignorance

• blissful ignorance
• ignorance is bliss
• plead ignorance
• tools of ignorance

Kids Definition

ignorance

noun

ig·​no·​rance ˈig-nə-rən(t)s 

: the state or fact of being ignorant : lack of knowledge, education, or awareness