What is the ruling on describing something forbidden as "sweet" (beautiful) without believing it to be permissible, or describing a sin as an improvement to the current situation without believing it to be permissible, while believing in the ugliness of the forbidden and the destructiveness of sin?

It is not permissible, according to Islamic law, to describe what is forbidden as beautiful or to praise it, nor is it permissible to recommend disobedience. Whoever describes something as beautiful while believing it to be ugly, and commands disobedience while seeing it as a means to improve a situation and destroy it at the same time, has combined contradictions.