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longest

ADJECTIVE

extended in space or time

Synonyms

STRONGEST

deep great high lengthy protracted tall

STRONG

continued elongate elongated enduring enlarged expanded lasting lengthened lingering prolonged running stretch stretched stretching sustained towering

WEAK

distant drawn out extensive far-off far-reaching faraway gangling lanky lofty longish outstretched rangy remote spread out spun out stringy

Antonyms

STRONGEST

ignorant little low short small soft unimportant weak

WEAK

abbreviated abridged ephemeral evanescent fleeting

ADJECTIVE

interminable, excessive in length

Synonyms

STRONGEST

late lengthy protracted slow

STRONG

delayed diffuse dragging lingering prolonged sustained

WEAK

boundless diffusive dilatory drawn-out for ages forever and a day limitless long-drawn-out long-winded overlong prolix tardy unending verbose without end wordy

Antonyms

STRONGEST

on time

WEAK

abbreviated abridged ephemeral evanescent fleeting short

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.

The previous longest known event lasted only five days, making the newly observed burst far more persistent than scientists expected.

From Science Daily • May 23, 2026

The U.S. stock market was riding high heading into Memorial Day weekend, as the S&P 500 cemented an eighth straight week in the green on Friday — its longest winning streak since 2023.

From MarketWatch • May 23, 2026

The S&P 500 wrapped up an eighth-consecutive week of gains, its longest such streak since December 2023.

From The Wall Street Journal • May 23, 2026

Stocks advanced Friday and the S&P 500 moved toward its longest weekly winning streak in 2½ years even as consumer optimism is falling fast.

From Barron's • May 22, 2026

But I picked the record for longest time spent tap dancing without stopping to break—seven hours and thirteen minutes.

From "Zara’s Rules for Record-Breaking Fun" by Hena Khan