Synonyms & Antonyms of prolong

to make longer
  • would like to prolong our vacation by any means possible

Synonyms for prolong

Words Related to prolong

Near Antonyms for prolong

Antonyms for prolong

See the Dictionary Definition 

Frequently Asked Questions About prolong

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

Keep scrolling for more

Learn More about prolong

Time Traveler for prolong

Time Traveler

The first known use of prolong was in the 15th century

See more words from the same century

Cite this Entry

“Prolong.” Thesaurus, Merriam-Webster, Accessed 16 Jan. 2021.

Keep scrolling for more

More from Merriam-Webster on prolong

Dictionary: Definition of prolong

Nglish: Translation of prolong for Spanish Speakers

Britannica English: Translation of prolong for Arabic Speakers

Comments on prolong

What made you want to look up prolong? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Words of Snow and Ice Quiz

  • image1037863653
  • Which of the following refers to thin, bending ice, or to the act of running over such ice?
True or False

Test your knowledge - and maybe learn something along the way.


Anagram puzzles meet word search.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!