Related Clues:

• Even-keeled
• Lacking compassion
• One who bites the bullet
• Lacking expression
• Phlegmatic
• Bullet-biting type
• One who never cries 'Ow!'
• Like some silences
• Immovable type
• Pebble-strewn
• Undemonstrative to the max
• Dispassionate person
• Seneca, for one
• Unemotional thinker
• Devoid of emotion