Dictionary Definition:
Lūkha (adj.) [Vedic rūkṣa; Prk. lūha & lukkha; BSk. lūha, e. g. Divy 13 (praheṇaka), 81 (˚cīvara), 425, 427] 1. rough, coarse, unpleasant; poor, bad (usually appld to dress or food); mediocre, meȧgre, wretched. Opp. paṇīta (e. g. Vin i.212; S ii.153; A iv.10; J i.228; VvA 64). -- S iv.337 sq.; A iv.232 sq.; Vin i.55; Th 1, 923; J i.228 (cittasmiŋ paṇīte . . . dānaŋ lūkhaŋ na hoti); Nd2 342 (p. 182, in exegesis of nikkuha, where practices of ascetics are referred to as "lūkhaŋ cīvaraŋ dhāreti, l. piṇḍapātaŋ bhuñjati, l. senāsanaŋ paṭisevati" etc.); VvA 298, 335 sq.; PvA 180. -- 2. (of men) low, wretched, rough, miserable, offensive Vin i.199; iii.110 (kisa l. dubbaṇṇa); S i.175 (=jiṇṇa C, see K.S. 320; trsln "looking worn"); M i.77=J i.390. -- lūkhapuggala a miserable, offensive character (opp. siniddhapuggala) Vism 132; VbhA 282.
-- ājīvin leading a hard or rough life D i.161; iii.44, 47; S ii.200; A v.190. -- cīvara (adj.) wearing a shabby robe, badly clad Vin iii.263; Miln 342 (cp. cīvara lūkha bad condition of clothes A ii.71=Pug 53; lūkhacīvara -- dhara A i.25). -- ppamāṇa (& ˚ika) taking unpleasantness or misery as one's standard Aii.71= Pug 53 (cp. PugA 229); DhA iii.114; SnA 242; cp. rūpa -- ppamāṇa. -- ppasanna believing in shabbiness or mediocrity, having (bodily) wretchedness as one's faith Vin ii.197; A ii.71=Pug 53. -- pāpuraṇa miserably clad S i.175; DhA iv.8, 9.