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

• olive branch
• olive drab
• olive family
• olive oil
• olive ridley
• olive tree
• olive-brown
• olive-colored
• olive-coloured
• olive-drab uniform
• olive-gray
• olive-green
• olive-grey
• olive-sized
• olive-tree agaric
• olivelike
• olivenite
• Oliver
• Oliver Cromwell
• Oliver Ellsworth
• Oliver Goldsmith
• Oliver Hardy
• Oliver Hazard Perry
• Oliver Heaviside
• Oliver Stone