Doolally is a colloquial term that means crazy or insane. However, there are also numerous synonyms that can be used interchangeably with the word doolally. Some of these synonyms include mad, loony, bonkers, demented, deranged, cuckoo, batty, nutty, unhinged, and out of one's mind. All of these words convey the same meaning as doolally and can be used in different contexts and settings. Whether you are writing a poem, a novel, or just having a conversation with your friends, using synonyms for doolally can help spice up your language and make your expressions more colorful and vibrant.