Can 'happy' in the sentence: "I don't feel too happy about going outside in the rain", be replaced with 'enamoured' to make the sentence: "I don't feel too enamoured about going outside in the rain. Does enamoured work as a suitable substitute for happy in the way that the word 'enthusiastic' does?
Happy is fine. “Enamoured about” and “Enamoured of” don’t sound right. (“Enamoured with” feels less awkward to me. I’m from Canada, where we constantly struggle to balance British and American expressions.)