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.

Trucking executives are calling an end to one of the longest freight downturns in carriers’ memory.

From The Wall Street Journal • Jun. 10, 2026

And Rubio carried out the longest single spaceflight by a US astronaut in history, spending 371 days in space after a coolant leak prolonged the journey.

From Barron's • Jun. 9, 2026

“Derek had the longest list, obviously, but I’ve met some appalling ends.”

From Los Angeles Times • Jun. 9, 2026

Today, she is its longest serving staff member - apart, that is, from founder Mark Zuckerberg.

From BBC • Jun. 4, 2026

I stared at my screen for the longest ten minutes of my life, willing it to change from “delivered” to “read.”

From "Keep It Together, Keiko Carter" by Debbi Michiko Florence