sloth — habitual disinclination to exertion; indolence; laziness.
aardvark — a nocturnal mammal, Orycteropus afer, the sole member of its family (Orycteropodidae) and order (Tubulidentata). It inhabits the grasslands of Africa, has long ears and snout, and feeds on termites
armadillo — An armadillo is a small animal whose body is covered with large bony scales and which rolls itself into a ball when it is attacked. Armadillos are mainly found in South and Central America.
anteater — An anteater is an animal with a long nose that eats termites or ants. Anteaters live in warm countries.
adjective edentate
edgeless — a line or border at which a surface terminates: Grass grew along the edges of the road. The paper had deckle edges.