Definitions

know-nothing

[noh-nuhth-ing] / ˈnoʊˌnʌθ ɪŋ /

ADJECTIVE

empty-headed

Synonyms

WEAK

brainless dizzy featherbrained frivolous giddy harebrained ignorant illiterate inane silly skittish stupid uneducated unschooled untaught vacant vacuous

Antonyms

WEAK

cognizant intelligent sensible slick smart

ADJECTIVE

uneducated

Synonyms

STRONGEST

ignorant illiterate unschooled

WEAK

benighted empty-headed ignoramus inerudite lowbrow uncultivated uncultured uninstructed unlearned unlettered unread unrefined untaught untutored

Antonyms

STRONGEST

educated learned literate

WEAK

intelligent lettered taught

NOUN

ignoramus

Synonyms

STRONG

blockhead dimwit dunce fool idiot imbecile moron

WEAK

numskull

Antonyms

STRONG

brain

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.

"I was like, 'I know nothing about this topic,'" she said.

From Science Daily • Apr. 3, 2026

You’d have to know nothing about basketball these days to fail to guess who his favorite player is.

From Los Angeles Times • Feb. 22, 2026

They know nothing about the old Russian Empire or the Middle East, so why not try their untutored hands at nuclear arms–control talks too?

From Slate • Feb. 6, 2026

As fans of Styles will know, nothing is guaranteed when it comes to securing tickets to see the singer - and much like his typical ticket sales, submitting a request does not guarantee tickets.

From BBC • Feb. 5, 2026

"I swear I didn't. I didn't know nothing about it. I swear I didn't steal that car."

From "Miracle's Boys" by Jacqueline Woodson

know-nothing

Example Sentences

Related Words