Our hopes for an apology and a reasonable explanation for the error were met with fatuous [ˈfætʃuəs] platitudes [陈词滥调].

fatuous [ˈfætʃuəs]
adj

To describe something, such as an idea or remark, as fatuous is to say that it is foolish or silly rather than sensible or logical.

...fatuous and infatuation share the same Latin root, fatuus, meaning "foolish." Both terms have been part of English since the 17th century.

English