A lummox is an awkward or goofy person. You might fondly refer to your klutzy best friend as a big old lummox.

Use the noun lummox when you need an informal, old fashioned word for a klutz. Though it can easily be seen as a serious insult, calling someone a lummox these days is fairly unusual and is more likely to be done in an affectionate or teasing way. Lummox comes from East Anglian slang, although its origin isn't known for sure. Some experts guess that it might stem from "dumb ox" or "lumbering."

Definitions of lummox
  1. noun
    an awkward, foolish person
    synonyms: clod, gawk, goon, lout, lubber, lump, nimrod, oaf, stumblebum
    see moresee less
    type of:
    clumsy person
    a person with poor motor coordination
Word Family

Test prep from the experts

Boost your test score with programs developed by’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.


  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week


  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week


  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week