doubtful

definition: fraught with uncertainty or doubt

example: they were doubtful that the cord would hold

speech part: adjective

synonyms: dubious

definition: open to doubt or suspicion

example: the candidate's doubtful past

speech part: adjective

synonyms: dubious dubitable in question

definition: unsettled in mind or opinion

example:

speech part: adjective

synonyms: tentative

doubtful is explained and pronounced