ἀτερπής
οἱ Κυρηναϊκοὶ δόξαις ἐχρῶντο τοιαύταις: δύο πάθη ὑφίσταντο, πόνον καὶ ἡδονήν, τὴν μὲν λείαν κίνησιν, τὴν ἡδονήν, τὸν δὲ πόνον τραχεῖαν κίνησιν → the Cyrenaics admitted two sensations, pain and pleasure, the one consisting in a smooth motion, pleasure, the other a rough motion, pain
English (LSJ)
ές,
A unpleasing, joyless, λιμός Il.19.354; of the nether world, νέκυας καὶ ἀτερπέα χῶρον Od.11.94, etc.; πέτρῃς . . καὶ ἀτερπέῑ χώρῳ, of a rocky shore, 7.279; νούσων ἑσμός A.Supp.685 (lyr.), cf.Pr. 31, Simon.37.6; λόγοι E.El.293; γῆρας Mosch.4.114; ἀτερπέστερον ἐς ἀκρόασιν less attractive to the ear, Th.1.22; ἦχοι ἀ., opp. ἐπιτερπεῖς, Phld.Po.994.23, cf. Mus.p.82 K.; εἴ τις ὑπερβάλλοι τὸ μέτριον τὰ ἐπιτερπέστατα ἀτερπέστατα ἂν γίγνοιτο Democr.233, cf. Ph.1.396 (Sup.); of persons, ἀ. καὶ κακὸς ὀρχηστής Plu.Cor.25. Adv. -πῶς, οὐκ ἀ. ἱστορείσθω Gal.14.237; but ἀ. ζῆν without enjoyment, Plu.2.1100d.