longest

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extended in space or time adj.
interminable, excessive in length adj.

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.

See Examples For:

longest

But Smith’s clear description of this formative technique of industrial engineering has lasted longest.

From The Wall Street Journal ● Aug. 21, 2026

Their return - the longest gap between games by a side in Premier League history - and first assignment was chastening and a reminder that survival will be no easy task.

From BBC ● Aug. 21, 2026

Nvidia describes its hardware as an investment with the “lowest token cost, highest revenue and longest life.”

From MarketWatch ● Aug. 20, 2026

When he made that 54-yard field goal, the longest of his career, in eighth grade, he did not scream.

From Los Angeles Times ● Aug. 19, 2026

“I’m going to break the world record for the longest time tapping without stopping.”

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