A.not to be withstood, irresistible, “δύναμις” Pl.Lg.686b; “ἀνάγκη” X.Lac.10.7; φρόνημα, πόλις, Id.Cyr.5.2.33, Mem.4.4.15; “τολμήματα” D.54.38; “ἀ. τισὶν ἀνταγωνισταί” D.Chr.8.17. Adv. “-τως” Aristobul. ap. Eus.PE8.10.
II. without sure foundation, “ἡ τῆς ὑποθέσεως ἀρχὴ ἀ.” Plb.1.5.3, cf. 12.25f.4; “ἀ. εἶναι τὰς τῶν ὅλων ἀρχάς” D.L.9.99, cf. Ath. 3.98c.
3. unsubstantial, Stoic.2.117, Syrian.in Metaph.25.3; of accidental or secondary qualities, Syn.Alch.p.62B.; nonexistent, Ps.-Archyt. ap. Simp.in Ph.785.17; “μαντικαί” D.L.7.149; “τὸ ἀ. . . τῆς μαντικῆς” Diogenian.Epicur.4.79; “κειμήλιον” Secund.Sent. 11.
4. without significance, “φωνή” Them.in Ph.124.27.