from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Lacking moisture, especially having insufficient rainfall to support trees or woody plants: an arid climate.
  • adj. Lacking interest or feeling; lifeless and dull: a technically perfect but arid musical performance.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Very dry.
  • adj. Describing a very dry climate. Typically defined as less than 25 cm or 10 inches of rainfall annually.
  • adj. Devoid of value.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Exhausted of moisture; parched with heat; dry; barren.

from The Century Dictionary and Cyclopedia

  • Dry; without moisture; parched with heat; hence, figuratively, uninteresting, lifeless, dull, pithless, etc.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. lacking sufficient water or rainfall
  • adj. lacking vitality or spirit; lifeless


Latin āridus, from ārēre, to be dry; see as- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Ultimately from the Latin term āridus ("dry, arid, parched"), confer its synonymous contracted form ardus. Originally from the verb āreo ("I am dry, I am parched"), akin to ārdeō ("I'm on fire, I burn"). (Wiktionary)



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