n. Function: adjective
Synonyms: DOUBTFUL 1, ambiguous, dubitable, equivocal, open, problematic, uncertain, unclear, undecided, unsettled
n. Function: adjective
Synonyms: DOUBTFUL 1, ambiguous, dubitable, equivocal, open, problematic, uncertain, unclear, undecided, unsettled
Merriam Webster. Collegiate thesaurus English dictionary. Английский энциклопедический толковый словарь тезауруса. 2012