inadequate(Not adequate) adjective [UK: ɪn.ˈæ.dɪ.kwət] [US: ˌɪ.ˈnæ.də.kwət]His vocabulary is inadequate. = Su vocabulario es inadecuado.
infelicitous [infelicitouser, infelicitousest](inappropriate or awkward; not well said, expressed, or done) adjective [UK: ɪn.fə.ˈlɪ.sɪ.təs] [US: ɪn.fə.ˈlɪ.sɪ.təs]
unsuitable(not suitable; unfit; inappropriate) adjective [UK: ʌn.ˈsuːt.əb.l̩] [US: ʌn.ˈsuːt.əb.l̩]The unsuitable way you dress calls attention to you. = Tu forma inadecuada de vestir llama la atención.