If you lounge around in your bathrobe watching TV and ordering out for pizza, you'll get called a sloth. A sloth is actually a slow-moving, tree-dwelling mammal, but it has become a synonym for "lazybones."

Slug also doubles as the name of an animal and a term for someone who is lazy, slow or lethargic. But with slug, the animal name probably morphed into the human application, whereas sloth has meant "lazy person" or "laziness" for a long time. In the Catholic Church sloth was categorized as one of the seven deadly sins.

Definitions of sloth
  1. noun
    a disinclination to work or exert yourself
    synonyms: slothfulness
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    type of:
    disinclination, hesitancy, hesitation, indisposition, reluctance
    a certain degree of unwillingness
  2. noun
    apathy and inactivity in the practice of virtue (personified as one of the deadly sins)
    synonyms: acedia, laziness
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    type of:
    deadly sin, mortal sin
    an unpardonable sin entailing a total loss of grace
  3. noun
    any of several slow-moving arboreal mammals of South America and Central America; they hang from branches back downward and feed on leaves and fruits
    synonyms: tree sloth
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    Bradypus tridactylus, ai, three-toed sloth
    a sloth that has three long claws on each forefoot and each hindfoot
    Choloepus didactylus, two-toed sloth, unai, unau
    relatively small fast-moving sloth with two long claws on each front foot
    Choloepus hoffmanni, two-toed sloth, unai, unau
    a sloth of Central America that has two long claws on each forefoot and three long claws on each hindfoot
    type of:
    primitive terrestrial mammal with few if any teeth; of tropical Central America and South America
Word Family