1. Incapable of being recovered or regained
   - unrecoverable

See also: irretrievable, lost, unretrievable

• catalpa
• Catalpa bignioides
• Catalpa speciosa
• catalufa
• catalyse
• catalysis
• catalyst
• catalytic
• catalytic converter
• catalytic cracker
• catalytically
• catalyze
• catamaran
• catamenia
• catamenial
• catamite
• catamount
• catamountain
• catananche
• Catananche caerulea
• cataphasia
• cataphatic
• cataphatism
• cataphoresis
• cataphoretic