laggard
From Longman Dictionary of Contemporary Englishlaggardlag‧gard /ˈlæɡəd $ -ərd/ noun [countable] old-fashioned SLOWLATEsomeone or something that is very slow or late —laggardly adjectiveFrom Longman Business Dictionarylaggardlag‧gard /ˈlægəd-ərd/ noun [countable]COMMERCE a company, country etc that is not developing as quickly or doing as well as othersThe companies were split into three groups: top performers, average firms and laggards. —laggard adjectiveOrigin laggard (1700-1800) → LAG1