ambiguous /æmˈbɪgjuəs/ /æmˈbɪgjʊəs/
vague /veɪg/ /veɪɡ/
unclear /ʌnˈklɪr/ /ˌʌnˈklɪə/
obscure /əbˈskjʊr/ /əbˈskjʊə/
