1. Temperamentally disinclined to talk
   - reticent

See also: taciturn

• controllable
• controlled
• controlled substance
• controller
• controllership
• controlling
• controlling interest
• controversial
• controversialist
• controversially
• controversy
• controvert
• controvertible
• contumacious
• contumaciously
• contumacy
• contumelious
• contumeliously
• contumely
• contuse
• contusion
• conundrum
• conurbation
• Conuropsis
• Conuropsis carolinensis