What is another word for lacking in appreciation?
Pronunciation: [lˈakɪŋ ɪn ɐpɹˌiːʃɪˈe͡ɪʃən] (IPA) 
When someone is lacking in appreciation, it means they don't value or acknowledge something for what it's worth. Other words that can be used to describe this include ungrateful, indifferent, insensitive, and oblivious. Ungrateful refers to someone who doesn't show gratitude or express thanks for something. Indifferent, on the other hand, means having a lack of interest or concern for something. Someone who is insensitive may not realize or care about the impact their actions or words have on others. Oblivious refers to someone who is unaware or clueless about something that should be obvious. All of these words describe a person who is lacking in appreciation and understanding of the value of something.
