Intemperate in the pursuit of pleasure; dissolute.(adjective)
Wasted or squandered.(adjective)
Irreversibly lost. Used of energy.(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.
Use "dissipated" in a sentence
"That the moral capital of all three parties has been dissipated is not lost on the public, whose contempt for the political process has grown."
"Another story was that a certain dissipated youth of the community, going home one Saturday night, or rather Sunday morning, from some unhallowed orgy, was pursued by a lamb of fire, with its head cut off and hanging by a strip of skin or flame."
"At the approach of the squat man he sprang to his feet, but a phrase dissipated his apprehension and he nodded toward a door."