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 Inglewood school district is set to regain control of its local public schools next year — after the longest state takeover of a school system in California history, officials announced Thursday.

From Los Angeles Times • Jul. 9, 2026

This makes it one of the longest lasting heatwaves since the infamous year of 1976.

From BBC • Jul. 8, 2026

Earlier this week, Trump was still talking about the castle, describing it as the "longest building I've ever seen".

From Barron's • Jul. 7, 2026

It was one of the longest in recent times in Northern Ireland.

From BBC • Jul. 3, 2026

Called “Operation Judgment” by the Germans, the Battle of Verdun would become the longest battle of World War I and one of the bloodiest ever fought.

From "The War to End All Wars: World War I" by Russell Freedman