ῥάθυμος

ον, Adv.

ῥᾶ, θυμός

A. light-hearted, easy-tempered, frivolous, careless, ὦ ‐ότατε Pl. Tht. 166a.
2. mostly in bad sense, taking things easy, indifferent, S. El. 958, Isoc. 9.35; οὐδεὶς γὰρ ὢν ῥ. εὐκλεὴς ἀνήρ E. Fr. 237.
3. slipshod, of literary style, Cic. QF 2.15(16).5 (Comp.).
II. of things, care-free, easy, βίος Isoc. 4.108; ‐οτάτη καταφυγή Id. 11.45; τὰ ‐ότατα αἱρεῖσθαι Pl. Cri. 45d, cf. Arist. Rh. 1368b18.
III. Adv. ‐μως carelessly, Pl. Lg. 659b, etc.
2. much like ῥᾳδίως, lightly, with equanimity, ῥ. φέρειν And. 4.23, Pl. R. 549d; ὑποφέρειν Id. Lg. 879c; ῥ. ἔχειν Isoc. 12.17; περί τι Plb. 4.7.6: Comp. ‐ότερον Isoc. 6.56, 7.10; ‐οτέρως διάγειν Arist. Pol. 1335b17; διακείμενοι Aen.Tact. 26.2. [ῥαθυμότερος correctly in PSI 5.522.4 (iii B.C.), but ῥαιθυμότατε wrongly in cod. B of Pl. Tht. l.c. (fol. 93v).]
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project