accidious
/əkˈsɪdɪəs/rare
adjective
Especially of a person: characterized by slothfulness.
Origin
Late Middle English; earliest use found in Pore Caitiff. From post-classical Latin accidiosus listless, slothful from accidia + classical Latin -ōsus. Compare Middle French accidieux. Compare also Anglo-Norman accidius (noun) slothful person.