Nonchalant

Definition: calmly unconcerned; unexcited; centered

Familial Quality: cool

Quotes:
• Nonchalant putts count the same as chalant putts. — Henry Nichols Beard (1945-) American humorist

• Let your soul stand cool and composed before a million universes. — Walt Whitman (1819–1892) American poet and essayist