Main entry: questioning, inquiring
Definition: a request for information
Main entry: speculative, questioning, wondering, inquisitive
Definition: showing curiosity
Usage: if someone saw a man climbing a light post they might get inquisitive; raised a speculative eyebrow
Main entry: questioning, quizzical
Definition: perplexed (as if being expected to know something that you do not know)
Usage: he had a quizzical expression
Main entry: sceptical, skeptical, doubting, questioning
Definition: marked by or given to doubt
Usage: a skeptical attitude; a skeptical listener