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

Final negotiations on ‘Peace’ are proceeding, subject to ignorance or stupidity getting in its way. —Ananya Chetia, CNBC, 8 June 2026

From this follow both the political dimension and a certain form of ignorance as to the source of so much unhappiness—and not only on the family front. —Nina Mesfin, New Yorker, 7 June 2026

Imperfect measurement is not an argument for embracing ignorance. —James Broughel, Forbes.com, 6 June 2026

And the forces that contributed to their demise — avarice, ignorance and a lack of imagination — are ascendant, illustrated by plans for a five-story Rolex shop on Las Olas and the Gekko district being built in downtown West Palm Beach. —Ben Crandell, Sun Sentinel, 3 June 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