ἀμφισβητητικός
From LSJ
Περὶ τοῦ ἐπέκεινα τοῦ νοῦ κατὰ μὲν νόησιν πολλὰ λέγεται, θεωρεῖται δὲ ἀνοησίᾳ κρείττονι νοήσεως → On the subject of that which is beyond intellect, many statements are made on the basis of intellection, but it may be immediately cognised only by means of a non-intellection superior to intellection
English (LSJ)
ή, όν,
A fond of disputing, disputatious, contentious, οἱ περὶ λόγους ἀ. Pl.Plt. 306a:—ἡ -κή (sc. τέχνη) art of disputing, Sph.226a; τὸ -κόν argumentation, ib.225b.