Source : Webster's Revised Unabridged Dictionary (1913)

Quizzical \Quiz"zic*al\, a.
   Relating to quizzing: given to quizzing; of the nature of a
   quiz; farcical; sportive. -- {Quiz"zic*al*ly}, adv.

Source : WordNet®

quizzically
     adv : in a quizzical and questioning manner; "they looked
           quizzically at the doctor" [syn: {questioningly}]