ILL-DEFINED
Meaning of ILL-DEFINED in English
adjective
Synonyms: faint 2, blear, bleary, dim, fuzzy, indistinct, shadowy, unclear, undefined, vague
Antonyms: well-defined
Merriam Webster.
Collegiate thesaurus English vocabulary.
Английский энциклопедический словарь тезаурус.
2003