ἀόργητος
From LSJ
To χάρις ὑμῖν οὕτω τίθησιν κτλ. → Thus he writes joy to you all, etc. (Cramer's Catena on 1 Thessalonians 1.1)
English (LSJ)
ον,
A not irascible, Arist.EN1108a8:—in good sense, Phld.Ir.p.71 W., Plu.2.10c, Luc.Herm.12, Aret.CD1.4, etc. Adv. -τως Phld. Lib.p.7 O., Arr.Epict.3.18.6, Hierocl. in CA12p.447M.