अनुपकारिन्anupakārina.Not obliging, ungrateful, not making a return for benefits received.
दातव्यमिति यद्दानं दीयतेऽनुपकारिणे ।
कोशःDictionaries
V. S. Apte, The Practical Sanskrit–English Dictionary. Look up any word of the Gita in Devanagari, IAST or Harvard-Kyoto, or browse the headwords letter by letter.