Akademik

vague
vague /'vāg/ adj: characterized by such a lack of precision that a person of ordinary intelligence would have to guess if particular conduct is being proscribed: characterized by a failure to describe forbidden conduct in terms sufficient to provide fair warning
an unconstitutionally vague law see also void-for-vagueness doctrine compare overbroad
vague·ly adv
vague·ness n

Merriam-Webster’s Dictionary of Law. . 1996.