involved litigation (verb) prosecute: bring action against in court
Detalii: persecute means 'to harass or treat unjustly'; prosecute is 'to bring legal action against' or 'to pursue something until the end'
Sinonime: astronomic, colossal,
considerable, enormous,
epic, gigantic, ginormous,
humongous*, jumbo, mammoth, massive, mega,
monster*, monumental, prodigious, sizeable,
tremendous, vast, very big, very large, whopping
Antonime: insignificant, small