Образуйте слова с префиксов.
english

aircraft - antiaircraft,polite - impolite,able - unable,Logical – illogical,Responsible – irresponsible,accurate – inaccurate,active – inactive,coherent – incoherent,attractive – unattractive,advantageous – disadvantageous,respectful – disrespectful.

Исключения: informal,inarticulate.