What is another word for lack of appreciation?
Pronunciation: [lˈak ɒv ɐpɹˌiːʃɪˈe͡ɪʃən] (IPA) 
There are multiple phrases that can be used as synonyms for the term "lack of appreciation". One of them is "ingratitude", which refers to a lack of gratitude or thanks. Another synonym is "unthankfulness", which is similar in meaning, but focuses more on the absence of expressing gratefulness. Other options include "underestimation", which implies undervaluing someone's contributions or worth, or "non-recognition", which denotes a lack of acknowledgment or noticing of what someone has done. Finally, "disregard" can also be used to imply a lack of appreciation, but with a more negative connotation of actively ignoring or disrespecting someone's efforts.
