rumpless

/ˈrʌmpləs/
adjective
  1. Lacking a rump or tail; having no rear end or tail feathers.
    • The rumpless chicken breed is known for its unusual appearance.
    • The rumpless cat had a short, stubby back end.
    • In the cartoon, the rumpless dog chased its tail but never caught it.
Synonyms
What does "rumpless" mean? | whatsthatwordmean | whatsthatwordmean