Grandiosity is a characteristic of being so ambitious or extravagant that you seem pretentious. The grandiosity of that new house down the street, with all of its turrets and columns, is a little ridiculous.

Someone's grandiosity might come across in the way they brag about their amazing achievements, blowing them up to be even bigger — or more grand — than they actually are. Or you might betray your grandiosity by making outlandish plans that don't seem quite realistic: "Later, I realized the grandiosity of my idea to start a cookie business that would make a million dollars in the first six months." The Latin root is grandis, "big."

Definitions of grandiosity
  1. noun
    high-flown style; excessive use of verbal ornamentation
    “the grandiosity of his prose”
    synonyms: grandiloquence, magniloquence, ornateness, rhetoric
    see moresee less
    a display of ornamental speech or language
    blah, bombast, claptrap, fustian, rant
    pompous or pretentious talk or writing
    type of:
    expressive style, style
    a way of expressing something (in language or art or music etc.) that is characteristic of a particular person or group of people or period
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