ungrateful ungrated • ungratefully · · · Info · Synonyms · Antonyms · Characters · · ungrateful · · Text Latin · · Script 10 · · Length Synonyms · · · thankless · · Synonym 1 unthankful · · Synonym 2 Antonyms · · · appreciative · · Antonym 0 glad · · Antonym 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 f latin small letter f U+0066 g latin small letter g U+0067 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075