English edit

Alternative forms edit

Etymology edit

extravagant +‎ -cy or extravagance +‎ -y

Noun edit

extravagancy (countable and uncountable, plural extravagancies)

  1. (archaic, 17-19th centuries) The characteristic of being extravagant.
  2. (archaic, 17-19th centuries) A thing that is extravagant.