Synonyms of back-breaking in English:

back-breaking


See definition of back-breaking

adjective

1‘a back-breaking task’

SYNONYMS
gruelling, arduous, strenuous, onerous, punishing, murderous, crushing, Herculean, demanding, exacting, taxing, formidable, exhausting, draining, laborious, burdensome, tough, stiff, uphill, heavy
informal killing
British informal knackering
archaic toilsome
ANTONYMS

easy, effortless