lackluster C1 Topic:Science & Research US /ˈlæklʌstə(ɹ)/ See IPA manual Freq #54584 Meanings 1 adj Not impressive; dull and lacking energy or excitement. The team gave a lackluster performance and lost the match. 2 adj Lacking shine or brightness. Years of neglect had left the old trophy dull and lackluster. Thesaurus Synonyms 1 adj · not impressive; dull and... lacklustredullbland 2 adj · lacking shine or brightness. lacklustrelustrelessdim More pallid Word family Derived forms lacklusterlylacklusterness Etymology AI details From lack + luster. *lewk- Proto-Indo-European View etymology graph -> Topics Science & Research Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # lackluster **Type:** Word **Level:** C1 **Part of speech:** adj **IPA (US):** /ˈlæklʌstə(ɹ)/ **Frequency rank:** 54584 ## Meanings 1. Not impressive; dull and lacking energy or excitement. 2. Lacking shine or brightness. ## Examples - The team gave a lackluster performance and lost the match. - Years of neglect had left the old trophy dull and lackluster. ## Synonyms - pallid ## Derived Forms - lacklusterly - lacklusterness ## Roots and Affixes - Root: *lewk- ## Etymology From lack + luster. ## AI Etymology Lackluster is from lack + luster. In present-day use, it can mean not impressive; dull and lacking energy or excitement, or lacking shine or brightness. Derived formations include lacklusterly and lacklusterness. ## Topics - Science & Research - Word Formation & Derivatives markdown