Definition of "adust" [a•dust]

• Burned; scorched. (adjective)
• Archaic Browned by the sun; sunburned. (adjective)
• Archaic Melancholy in appearance or temperament; gloomy. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "These symptoms vary according to the mixture of those four humours adust, which is unnatural melancholy."
• "His complexion was of the kind which used to be called adust -- burnt up with inner fires; his visage was long and somewhat harshly designed, very apt, it would seem, to the expression of hitter ironies or stern resentments, but at present bright with friendly pleasure."
• "What if the Iranians actually see Israel as an expansionist power seeking to adust its borders at the expense of fellow Muslims."