no-good

[ adjective noh-goo d; noun noh-goo d ]
/ adjective ˈnoʊˈgʊd; noun ˈnoʊˌgʊd /
Informal.

adjective

lacking worth or merit; useless; bad: This no-good faucet never did work properly. Her no-good brother sold me the car.

noun

a person or thing that is worthless or undependable.

Origin of no-good

An Americanism dating back to 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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