lackluster

[ lak-luhs-ter ]
/ ˈlækˌlʌs tər /

adjective

lacking brilliance or radiance; dull: lackluster eyes.
lacking liveliness, vitality, spirit, or enthusiasm: a lackluster performance.

noun

a lack of brilliance or vitality.
Also especially British, lack·lus·tre.

Origin of lackluster

First recorded in 1590–1600; lack + luster1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for lacklustre

British Dictionary definitions for lacklustre

lacklustre

US lackluster

/ (ˈlækˌlʌstə) /

adjective

lacking force, brilliance, or vitality
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012