What is another word for lunatic?
Pronunciation: [lˈuːnətˌɪk] (IPA) 
The word "lunatic" has a derogatory undertone and can be considered offensive. Therefore, it is important to know some synonyms for the word that are less stigmatizing. One alternative term is "mentally ill," which refers to someone who has a psychiatric disorder. Another synonym is "insane," which denotes a person who has lost their sanity. Other terms that can be used instead of "lunatic" include "mad," "crazy," "deranged," and "unbalanced." It is always important to be mindful of the words we use and the messages they convey. Using less stigmatizing language can help promote understanding and empathy towards individuals experiencing mental health issues.
