ill-defined

adj 1 not accurately described 不清楚的; 含混的; 不分明的; 不明确的: an ,ill-defined `job 内容不明确的工作. 2 not distinct in outline 轮廓不鲜明的: an ill-defined lump of rock on the horizon 天边一处轮廓不清的岩影.

ignobly, ignominious, ignominiously, ignominy, ignoramus, ignorance, ignorant, ignorantly, ignore, iguana, ikon, il-, ilex, ilk, ill, ill-advised, ill-advisedly, ill-assorted, ill-bred, ill-considered, ill-disposed, ill-educated, ill-fated, ill-favoured, ill-founded, ill-gotten, ill-judged, ill-mannered, ill-natured, ill-neturod, ill-omened, ill-omened, ,ill-starred, ill-timed, ill-treat, ill-treat, ill-use, ill-treatment, ill-usage, illegal, illegality, illegally, illegibility,