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

See also: incommunicative, uncommunicative

• off-and-on
• off-axis reflector
• off-base
• off-Broadway
• off-center
• off-centered
• off-centre
• off-centred
• off-color
• off-colour
• off-day
• off-guard
• Robert's Rules of Order
• Roberto Francesco Romolo Bellarmine
• Roberts
• Robertson
• Robeson
• Robespierre
• robin
• Robin Goodfellow
• Robin Hood
• robin redbreast
• robin's plantain
• Robinia
• Robinia hispida