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

The longest unfinished stretch is the eight miles from Elysian Park through downtown to Maywood.

From Los Angeles Times ● Aug. 10, 2026

The longest words in yesterday’s game were LAYAWAY, PAPALLY, and PAYWALL.

From Slate ● Aug. 5, 2026

Some chasers are already planning for a total eclipse next year that will be the longest humans will be able to see until 2114.

From Barron's ● Aug. 5, 2026

A former Spanish colony, Western Sahara - which is considered a "non-self-governing territory" by the UN - has been fought over for five decades in one of Africa's longest conflicts.

From BBC ● Aug. 3, 2026

It would be his longest, the longest for any pilot—from Pakistan all the way over Russia to an air base in northern Norway.

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin