From Longman Dictionary of Contemporary Englishungraciousun‧gra‧cious /ʌnˈɡreɪʃəs/ adjective RUDE/IMPOLITEnot polite or friendly After Anna’s kindness to me, I don’t want to seem ungracious. —ungraciously adverb
Examples from the Corpus
ungracious• It says it can accept these only under protest, a response apparently regarded as ungracious.• There is nothing ungracious about that comment.• an ungracious loser• I long to be ungracious, not ingratiate myself with both men.• It was very ungracious of me.