doofus

/ˈduːfəs/
noun
  1. A silly, stupid, or clumsy person.
    • That doofus locked his keys in the car again.
    • Don't be such a doofus — read the instructions first.
    • My brother is a lovable doofus who always trips over his own feet.
Antonyms
What does "doofus" mean? | whatsthatwordmean | whatsthatwordmean