Synonyms of prolong

prolong

verb

prə-ˈlȯŋ 

as in to lengthen

to make longer

would like to prolong our vacation by any means possible

Synonyms & Similar Words

• lengthen
• extend
• increase
• stretch
• protract
• elongate
• drag (out)
• draw out
• expand
• enlarge
• outstretch
• amplify
• attenuate
• thin

Antonyms & Near Antonyms

• shorten
• curtail
• cut
• reduce
• cut back
• decrease
• diminish
• lessen
• abridge
• abbreviate
• thicken

Synonym Chooser

How does the verb prolong contrast with its synonyms?

Some common synonyms of prolong are extend, lengthen, and protract. While all these words mean "to draw out or add to so as to increase in length," prolong suggests chiefly increase in duration especially beyond usual limits.

prolonged illness

How do extend and lengthen relate to one another, in the sense of prolong?

Both extend and lengthen imply a drawing out in space or time but extend may also imply increase in width, scope, area, or range.

extend a vacation

extend welfare services

lengthen a skirt

lengthen the workweek

How are the words protract and prolong related?

Protract adds to prolong implications of needlessness, vexation, or indefiniteness.

protracted litigation

Example Sentences

Recent Examples of prolong

Rodríguez, meanwhile, has an incentive to prolong her time in office. — Antonio María Delgado, Miami Herald, 26 Oct. 2026

Use multiple sheets to use on rotation, helping prolong each set’s durability. — Abby Monteil, The Spruce, 26 Oct. 2026

Sunday's presidential runoff in Brazil could prolong the career of a political giant—or usher in a new generation of a political dynasty. — Carrie Kahn, NPR, 23 Oct. 2026

Flying with a blood clot is not always prohibited, but prolonged sitting during air travel can increase the risk of blood clots. — ABC News, 21 Oct. 2026