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Definitions

Einstein

[ahyn-stahyn, ahyn-shtahyn] / ˈaɪn staɪn, ˈaɪnˌʃtaɪn /

ADJECTIVE

bright

Synonyms

STRONGEST

brilliant sharp smart

WEAK

acute advanced alert astute aware brainy clear-headed clever discerning eggheaded having smarts ingenious inventive keen knowing precocious quick quick-witted whiz kid wide-awake

Antonyms

STRONGEST

dull slow stupid unintelligent unstylish

WEAK

black cloudy dark depressed depressing doleful dreary dusky gloomy horrible light murky normal obscure pale pastel somber threatening typical unaware unhappy unpromising

ADJECTIVE

brilliant

Synonyms

STRONGEST

accomplished astute bright gifted ingenious inventive sharp smart talented

WEAK

acute brainy clever discerning eggheaded expert genius intellectual knowing knowledgeable masterly penetrating profound quick quick-witted whip whiz kid

Antonyms

STRONGEST

dull ignorant inept slow stupid unintelligent unstylish

WEAK

dark dulled normal typical unaware

ADJECTIVE

keen

Synonyms

STRONGEST

astute discriminating quick sensitive sharp shrewd wise

STRONG

discerning whiz

WEAK

bright brilliant canny clever nobody's fool perceptive perspicacious sagacious sapient sharp as a tack

Antonyms

STRONGEST

foolish ignorant slow stupid unintelligent

WEAK

dull idiotic obtuse

NOUN

brain

Synonyms

STRONGEST

intellect

STRONG

academician doctor egghead genius highbrow intellectual mastermind prodigy pundit sage scholar

Antonyms

WEAK

dumbbell idiot simpleton

NOUN

genius

Synonyms

STRONGEST

ability accomplishment acumen aptitude brilliance flair imagination ingenuity inspiration intelligence inventiveness originality prodigy prowess talent wisdom

STRONG

acuteness aptness astuteness bent brain capability capacity creativity discernment endowment expertise faculty grasp head inclination knack perspicacity power precocity propensity sagacity understanding virtuosity

WEAK

maturity percipience reach

Antonyms

STRONGEST

ignorance inability incapacity ineptitude ineptness stupidity weakness

STRONG

incompetence misunderstanding

WEAK

idiocy imbecility

NOUN

highbrow

Synonyms

STRONG

academic academician bluestocking brain egghead genius intelligentsia philosopher sage savant scholar thinker whiz

WEAK

illuminato literato longhair

Antonyms

STRONG

ignoramus imbecile

NOUN

intellectual

Synonyms

STRONGEST

academic academician doctor intelligentsia philosopher pundit scholar thinker

STRONG

avant-garde brain egghead genius highbrow sage whiz wizard

WEAK

braintruster

Antonyms

STRONG

imbecile

WEAK

ignoramus

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.

Then in 1915, Einstein used these ideas to build his general theory of relativity, describing gravity as curvature in the fabric of space-time.

From Slate • Jun. 22, 2026

To demonstrate this precision, the researchers used a standard laser to create a microscopic monochrome portrait of Albert Einstein on a thin piece of the material, with points spaced just 700 nanometers apart.

From Science Daily • Apr. 21, 2026

Proposed by Albert Einstein in 1915, general relativity describes gravity as the bending of spacetime by mass, similar to how a heavy object distorts a stretched surface.

From Science Daily • Apr. 19, 2026

A hundred years ago Einstein himself held to the then-standard belief that the universe had no beginning.

From The Wall Street Journal • Apr. 16, 2026

Some believed that Einstein once said, “Learn from yesterday, live for today, hope for tomorrow.”

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas

Einstein

Example Sentences

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