Definition: calmly unconcerned; unexcitable; centered
Derivation: French, “not concerned”
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 & essayist