जिसमें संदेह हो।

संदिग्ध कार्यों को करने से बचना चाहिए।
मुश्तबहा, संदिग्ध, संदेहपूर्ण, संदेहयुक्त, संदेहात्मक, संदेहास्पद, सन्दिग्ध, सन्देहपूर्ण, सन्देहयुक्त, सन्देहास्पद

Open to doubt or suspicion.

The candidate's doubtful past.
He has a dubious record indeed.
What one found uncertain the other found dubious or downright false.
It was more than dubitable whether the friend was as influential as she thought.
doubtful, dubious, dubitable, in question