ungrateful
https://gyazo.com/42f28aeabef98177ae7d7be77ad842d5
adjective
【人に/事に】感謝しない, 恩知らずの «to/for»
e.g. she's so ungrateful for everything we do.
｟かたく｠ 不愉快な; 〈仕事などが〉報われない
e.g. he turned to the ungrateful task of forming a police cordon.
DERIVATIVES