1. Not to be placated or appeased or moved by entreaty
   - grim, inexorable, relentless, stern, unforgiving, unrelenting

See also: implacable

• cinnabar chanterelle
• cinnabar moth
• cinnamene
• Cinnamomum
• Cinnamomum camphora
• Cinnamomum cassia
• Cinnamomum loureirii
• Cinnamomum zeylanicum
• cinnamon
• cinnamon bark
• cinnamon bear
• cinnamon bread
• cinnamon bun
• cinnamon coloured
• collyrium
• collywobbles
• coloboma
• colobus
• Colobus guereza
• colobus monkey
• Colocasia
• Colocasia esculenta
• colocynth
• cologne
• cologne water