Related Clues:

• Bite-the-bullet type
• Floating ice mass
• Far from demonstrative
• Indifferent individual
• Not very excitable
• Forbearing
• Detached type
• Floating hazard
• Showing no pain
• Unemotional to a fault
• Glacial marine threat
• Indifferent to pleasure or pain
• Type of lettuce
• Like Spock
• Even-keeled