1. Playfully vexing (especially by ridicule)
   "his face wore a somewhat quizzical almost impertinent air"
   - mocking, teasing 
2. Perplexed (as if being expected to know something that you do not know)
   "he had a quizzical expression"
   - questioning

See also: perplexed, playful, quizzically

• ungovernable
• ungoverned
• ungraceful
• ungracefully
• ungracefulness
• ungracious
• ungraciously
• ungraciousness
• ungradable opposition
• ungraded
• ungrammatical
• ungrammatically
• ungrasped
• ungrateful
• ungrateful person
• ungratefully
• ungratefulness
• ungratified
• ungratifying
• ungreased
• ungregarious
• ungroomed
• ungrudged
• ungrudging
• ungrudgingly