costly

[ kawst-lee, kost- ]
/ ˈkɔst li, ˈkɒst- /

adjective, cost·li·er, cost·li·est.

costing much; expensive; high in price: a costly emerald bracelet; costly medical care.
resulting in great expense: The upkeep of such a large house is costly.
resulting in great detriment: It was a costly mistake because no one ever trusted him again.
of great value; very valuable; sumptuous.
lavish; extravagant.

Nearby words

  1. costermansville,
  2. costermonger,
  3. costing,
  4. costive,
  5. costively,
  6. costmary,
  7. costner,
  8. costo-,
  9. costoaxillary vein,
  10. costocervical artery

Origin of costly

First recorded in 1350–1400, costly is from the Middle English word costli. See cost, -ly

Related formscost·li·ness, nouno·ver·cost·li·ness, nouno·ver·cost·ly, adjectiveun·cost·ly, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for costliest


British Dictionary definitions for costliest

costly

/ (ˈkɒstlɪ) /

adjective -lier or -liest

of great price or value; expensive
entailing great loss or sacrificea costly victory
splendid; lavish
Derived Formscostliness, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for costliest

costly

adj.

late 14c., from cost + -ly (1). Earlier formation with the same sense were costful (mid-13c.), costious (mid-14c.).

Online Etymology Dictionary, © 2010 Douglas Harper