ingratitude
ingratitudenoun- [mass noun]a discreditable lack of gratitude
忘恩负义
he returned his daughter's care with ingratitude and unkindness.
他忘恩负义,不近人情,以此来回报女儿的照顾。
语源- Middle English: from Old French, or from late Latin ingratitudo, from Latin ingratus 'ungrateful' (see ingrate)
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