obloqui, anybody, alicui: contra dicere (absolute; to speak against anything; contradicere alicui or alicui rei, was not used before the Silver age): adversari (to oppose: alicui: to contradict every body, adversari semper omnibus, Cic.): impugnare aliquid (to assail. e.g., an opinion, sententiam): repugnare (to fight against, oppose; e.g., alicui rei or contra aliquid). To contradict in a noisy manner, obstrepere: to contradict with a loud voice, reclamare: to contradict one another, obloqui (of persons), inter se pugnare, or repugnare, or discrepare, or dissidere (to differ, to be inconsistent with each other, etc.,: of opinions): to contradict one’s self, secum pugnare (general term): pugnantia loqui (to say contradictory things): a se dissidere: sibi dissentire: sibi non constare (of persons who do not abide by a statement they have made, e.g., of a witness, etc.): they (the witnesses) contradict one another, non congruentia respondent.