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

Fishback later winkingly professed ignorance about the word. —Andrew Lapin, Sun Sentinel, 16 Feb. 2026

This shocking ignorance and insensitivity by Ocasio-Cortez should rule her out of any potential presidential bid or other high office. —Benjamin Weinthal, FOXNews.com, 14 Feb. 2026

There are still many in this country who value truth, who believe that history should be preserved and not erased, who understand that constitutional rights should not be swept away to suit the whims of a megalomaniac, and who refuse to wallow in ignorance and hate. —Dp Opinion, Denver Post, 11 Feb. 2026

One is sheer ignorance of this etiquette rule. —Tara Massouleh McCay, Southern Living, 10 Feb. 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