Synonyms of low-grade in English:

low-grade


See US English definition of low-grade

See UK English definition of low-grade

See Spanish definition of pobre

adjective

1‘low-grade coal’

SYNONYMS
poor-quality, inferior, substandard, below standard, second-rate
shoddy, cheap, shabby, reject, trashy, junky, bargain-basement, gimcrack
poor, bad, unsatisfactory, not up to par, not up to scratch
mediocre
informal tinpot
British informal rubbishy, duff, ropy, twopenny-halfpenny
North American informal two-bit, bum, cheapjack, a dime a dozen, low-rent, tinhorn
ANTONYMS

top-quality, first-class