impacable /imˈpa-kə-bl/ (rare)

Not to be quieted or appeased, implacable

• palliate
• palliated
• palliates
• palliating
• palliation
• palliations
• palliative
• palliative care
• palliatives
• palliatory
• pallid
• pallider
• pallidest
• pallidities
• pallidity
• pallidly
• pallidness
• pallidnesses
• pallier
• palliest
• palling
• pallium
• pall-mall
• pall-malls
• pallone