instinctive

natural (Xen., Arist., al.); produced by nature, innate (Arist., Diod., al.): opp. to , , ; according to nature παρὰ φύσιν Ro 1:26 27 (cf. Plut., , 706): (RV,; Mayor,; , ), ,† governed by mere natural instinct born mere animals born creatures of instinct animals born of mere nature Mor. ICC A ζῷα γεγεννημένα φ. II Pe 2:12

"physical", i.e. (by implication) instinctive

natural