dubiously

Definitions

In a manner that arouses suspicion or doubt.

With a feeling of hesitation or uncertainty.

Examples

He looked dubiously at the strange, glowing liquid before deciding whether or not to drink it.

The salesman smiled dubiously when I asked if the car had ever been in an accident.

Synonyms

doubtfully skeptically uncertainly suspiciously questionably hesitantly mistrustfully

Antonyms

certainly confidently trustingly definitely assuredly unquestionably positively