1. (a.) Given to extravagant expenditure; expending money or other things without necessity\; recklessly or viciously profuse; lavish; wasteful; not frugal or economical; as, a prodigal man; the prodigal son; prodigal giving; prodigal expenses.

2. (n.) One who expends money extravagantly, viciously, or without necessity; one that is profuse or lavish in any expenditure; a waster; a spendthrift.

Adamic abounding abundant affluent aggrandized alive with all-sufficing ample amplified aplenty backsliding ballyhooed bibulous big-time spender bottomless bounteous bountiful bristling bursting carnal copious crapulent crapulous crawling crowded crowding diffuse diffusive disproportionate dissipative easy come easy go effuse effusive epidemic erring exaggerated excessive exhaustless exorbitant extravagant extreme exuberant fallen fat fecund fertile fleshly flush formless frail full galore generous gluttonous grandiloquent gushing gushy high-flown hyperbolic immoderate improvident impure in plenty in profusion in quantity incontinent indulgent inexhaustible infirm inflated inordinate intemperate jam-packed jammed lapsed lavish liberal lush luxuriant magnified many maximal much numerous of easy virtue opulent overabundant overbounteous overcopious overdone overdrawn overemphasized overemphatic overestimated overexuberant overflowing overgenerous overgreat overindulgent overindulging overlarge overlavish overliberal overluxuriant overmuch overnumerous overplenteous overplentiful overplenty overpopulated overpopulous overpraised overprolific oversold overstated overstressed overwrought packed peccable penny-wise and pound-foolish plenitudinous plenteous plentiful plenty pleonastic plethoric populous postlapsarian pound-foolish prevailing prevalent prodigal son productive profligate profuse profusive proliferating prolific puffed pullulating rampant recidivist recidivistic reckless redundant reiterative repetitive replete rich rife riotous running over self-indulgent spend-all spender spendthrift squanderer squandering stretched studded sumptuous superabundant superlative swarming swinish tautologous teeming thick thick as hail thick with thick-coming thriving thronged thronging too much touted unangelic unbridled unchaste unclean unconstrained uncontrolled undisciplined unfrugal ungodly ungood unlimited unmeasured unrestrained unrighteous unsaintly unthrifty unvirtuous virtueless wanton wasteful waster wastethrift wastrel wayward weak wealthy well-found well-furnished well-provided well-stocked wholesale