Synonyms of long-drawn-out in English:

long-drawn-out


adjective

1‘his trial was a long-drawn-out affair’

SYNONYMS
prolonged, protracted, lengthy, lasting, long-lasting, marathon, overlong, extended, drawn-out, spun-out, dragged-out, dragging, time-consuming, seemingly endless, lingering, interminable
tedious, boring, wearisome