From Longman Dictionary of Contemporary Englishslothfulsloth‧ful /ˈsləʊθfəl $ ˈsloʊθ-/ adjective formalLAZYlazy or not activeSYN idle —slothfulness noun [uncountable]
Examples from the Corpus
slothful• Fatigue had made him slothful, and now he'd let his enemies get dangerously close.