irrevocable
adj. Incapable of being revoked. For example, powers of appointment may be made irrevocable. On the other hand, a testator of sound mind can revoke his will at any time.

• practice master
• practising certificate
• praecipe
• pray a tales
• prayer
• pre-action protocols
• preamble
• precarious possession
• precatory trust
• precatory words
• precedent
• precept
• predatory pricing
• predecessor
• pre-employment health questionnaires
• pre-emption
• pre-emptive right
• preference
• preference share
• preferential debts
• preferment
• pregnancy
• pregnancy per alium
• prehearing review
• pre-incorporation contract