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

See also: implacable

• repay
• repayable
• repayment
• repayment rate
• repeal
• repealable
• repeat
• repeatable
• repeated
• repeatedly
• repeater
• repeating
• repeating decimal
• repeating firearm
• repel
• repellant
• repellent
• repellently
• repeller
• repelling
• repellingly
• repent
• repentance
• repentant
• repentantly