Sloth is laziness, especially with regard to work.
[formal]
He admitted a lack of motivation and a feeling of sloth.
2. countable noun
A sloth is an animal from Central and South America. Sloths live in trees and move very slowly.
More Synonyms of sloth
sloth in British English
(sləʊθ)
noun
1.
any of several shaggy-coated arboreal edentate mammals of the family Bradypodidae, esp Bradypus tridactylus (three-toed sloth or ai) or Choloepus didactylus (two-toed sloth or unau), of Central and South America. They are slow-moving, hanging upside down by their long arms and feeding on vegetation
2.
reluctance to work or exert oneself
Word origin
Old English slǣwth; from slǣw, variant of slāwslow
sloth in American English
(slɔθ; slɑθ; also, Chiefly British sloʊθ)
noun
1.
disinclination to work or exert oneself; indolence; laziness; idleness
2. Rare
slowness; delay
3.
a.
any of a family (Bradypodidae) of slow-moving, tree-dwelling edentate mammals oftropical Central and South America that hang, back down, from branches and feed on fruits and vegetation, including a three-toed species (genus Bradypus) and a two-toed species (genus Choloepus)
b.
any of various families of extinct, ground-dwelling edentate mammals
Word origin
ME slouthe < slou, slow, used for older slewthe, sleuthe < OE slæwth, sloth < slaw, slow: see slow & -th1