is lackluster one word or two
Tips: The related noun luster means a shiny quality.. Lackluster describes something that lacks a shiny quality; it lacks luster.. It is also used to describe anything that lacks vitality, spirit, or interest.arning: include(): Failed opening 'http://vocabulary-vocabulary.com/includes/search.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/vocabulv/public_html/dictionary/lackluster.php on line 30.