Obs. rare. [f. ἀκέφαλ-ος + -IST.] One who professes the doctrines of the (Ecclesiastical) Acephali; one who acknowledges no head or superior.
1659. Gauden, Eccl. Angl. Susp., 464. I ask these Acephalists, who will indure no head but that on their own shoulders, whether the City of London is worse governed, because it hath a Lord Maior among and above the Aldermen and Common Councel.
1696. Phillips, Acephalists, a sort of Hereticks, whose first founder is unknown; also Vagabond Clergymen, having neither King nor Bishop for their Head.