slowcoach

/ˈsloʊˌkoʊtʃ/
noun
  1. A person who moves, works, or does things very slowly.
    • My little brother is such a slowcoach when we walk to the park.
    • The new intern is a bit of a slowcoach, but his work is very thorough.
    • Don't be a slowcoach — we'll miss the start of the movie!
Antonyms
What does "slowcoach" mean? | whatsthatwordmean | whatsthatwordmean