A giant box you need to carry to the post office, clothes you wear in the snow — both of these things are bulky or large and difficult to deal with.

Inside the word bulky you see the word bulk which refers to the size of something, usually something large. When something is bulky, it has a lot of size or heft, though it is not necessarily heavy. Pillows, for example, are bulky. It's just big in an inconvenient way. Thick yarn, or a sweater made from thick yarn, is also said to be bulky. It's thicker than your average yarn.

Definitions of bulky
  1. adjective
    of large size for its weight
    big, large
    above average in size or number or quantity or magnitude or extent
Word Family

Test prep from the experts

Boost your test score with programs developed by Vocabulary.com’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