DUBIOUS
dubious
Adjective
- Arousing doubt; questionable; open to suspicion.
- After he made some dubious claims about the company, fewer people trusted him.
- In disbelief; wavering, uncertain, or hesitating in opinion; inclined to doubt; undecided.
- She was dubious about my plan at first, but later I managed to persuade her to cooperate.
The above text is a snippet from Wiktionary: dubious
and as such is available under the Creative Commons Attribution/Share-Alike License.