1. Deliberately impassive in manner
   - deadpan, expressionless, impassive, poker-faced, straight-faced

See also: incommunicative, uncommunicative

• California poppy
• California privet
• California quail
• California redbud
• California redwood
• California romero
• California sage
• California sagebrush
• California sea lion
• California single-leaf pinyon
• California sycamore
• California tree poppy
• California whipsnake
• California white fir
• California white oak
• California wine
• California yellow bells
• California yew
• Californian
• californium
• caliginous
• Caligula
• calipee
• caliper
• caliph