Argued, past participle of argue. Synonyms in the same form.
Remonstrate
remonstrated, bickered, disputed, squabbled, wrangled, rowed, expostulated, altercated
Debate
debated, contended, fenced
Submit
submitted, sparred
Prove
proved, indicated, implied, evidenced, demonstrated, mooted, evinced, shown, established, denoted, betokened
Other
reasoned, persuaded, discussed, opposed, pled, contested, sifted, tangled
All synonyms for argue →