For there are many unruly and vain talkers and deceivers, specially they of the circumcision: Unruly, х anupotaktoi (G506)] - 'insubordinate.' And. So Delta G f g, Vulgate. Omitted in 'Aleph (') A C. 'There are many unruly persons, vain talkers, and deceivers:' "unruly" being predicated of both.
Vain talkers - opposed to "holding fast the faithful word" (Titus 1:9). "Vain jangling" (1 Timothy 1:6): "foolish questions ... unprofitable and vain" (Titus 3:9). The source of the evil was corrupted Judaism (Titus 1:14). There were many Jews in Crete (Josephus): so the Jewish leaven remained in some after conversion. (Insinuating)
Deceivers - literally, 'deceivers of minds' [Galatians 6:3: frenapatai (G5423)].