1. Impossible to recover or recoup or overcome
   - irretrievable

See also: irrecoverable, unrecoverable

• organized crime
• organized labor
• organized labour
• organized religion
• organizer
• organo-
• organogenesis
• organogram
• organoleptic
• organon
• organophosphate
• organophosphate nerve agent
• organs
• organum
• organza
• organzine
• orgasm
• orgasmic
• orgiastic
• orgy
• oribi
• orichalc
• orichalcum
• oriel
• oriel window