N-SING 幻想的幸福;愚人乐园;虚幻的满足 If you say that someone is living in a fool's paradise, you are criticizing them because they are not aware that their present happy situation is likely to change and get worse. 幻想的幸福;愚人乐园;虚幻的满足 [disapproval]
...living in a fool's paradise of false prosperity.