/ ˈprɒflɪgət; NAmE ˈprɑːf-/ adjective
( formal , disapproving ) using money, time, materials, etc. in a careless way
SYN wasteful :
profligate spending
► prof·li·gacy / ˈprɒflɪgəsi; NAmE ˈprɑːf-/ noun [ U ]
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WORD ORIGIN
mid 16th cent. (in the sense overthrown, routed): from Latin profligatus dissolute, past participle of profligare overthrow, ruin, from pro- forward, down + fligere strike down.