lackluster

adjective

lack·​lus·​ter ˈlak-ˌlə-stər How to pronounce lackluster (audio)
Synonyms of lacklusternext
: lacking in sheen, brilliance, or vitality : dull, mediocre
The actor gave a lackluster performance.
lackluster noun

Did you know?

Lackluster may describe things that are dull, but the word itself is no yawn. In its earliest uses in the early 17th century, lackluster (also spelled lacklustre) usually described eyes that were dull or lacking in brightness, as in “a lackluster stare.” Later, it came to describe other things whose sheen had been removed; Charles Dickens, in his 1844 novel Martin Chuzzlewit, writes of the faded image of the dragon on the sign outside a village alehouse: “many a wintry storm of rain, snow, sleet, and hail, had changed his colour from a gaudy blue to a faint lack-lustre shade of grey.” These days lackluster is broadly used to describe anything blah, from a spiritless sensation to a humdrum hump day.

Examples of lackluster in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Dunn pointed to when Bannon tried to rally the crowd on the main stage at CPAC around the war in Iran, but was met with a lackluster response. Rachel Royster, Fort Worth Star-Telegram, 29 Mar. 2026 Judge will have to wait an extra day to make up for his lackluster 2026 debut, as the Yankees and Giants are off on Thursday. Gary Phillips, New York Daily News, 26 Mar. 2026 Mahan’s lackluster standing puts pressure on him to come up with something new to appeal to voters, even if that means breaking with Democrats. Barnini Chakraborty, The Washington Examiner, 25 Mar. 2026 Skubal was frustrated with himself after a lackluster final spring start, one where his stuff lacked sharpness and his velocity was down. Cody Stavenhagen, New York Times, 25 Mar. 2026 See All Example Sentences for lackluster

Word History

First Known Use

1600, in the meaning defined above

Time Traveler
The first known use of lackluster was in 1600

Browse Nearby Words

Podcast

Cite this Entry

“Lackluster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lackluster. Accessed 4 Apr. 2026.

Kids Definition

lackluster

adjective
lack·​lus·​ter ˈlak-ˌləs-tər How to pronounce lackluster (audio)
: lacking in brightness, radiance, or interest : dull
a lackluster performance

More from Merriam-Webster on lackluster

Love words? Need even more definitions?

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

More from Merriam-Webster