τὸ ἀντίθετον
From LSJ
ἡ Νέμεσις προλέγει τῷ πήχεϊ τῷ τε χαλινῷ μήτ' ἄμετρόν τι ποιεῖν μήτ' ἀχάλινα λέγειν → Nemesis warns us by her cubit-rule and bridle neither to do anything without measure nor to be unbridled in our speech
Spanish
antítesis, argumento contrario, objeción
Russian (Dvoretsky)
ἀντίθετον: τό Arph., Arst. = ἀντίθεσις.