The Oxford Thesaurus An A-Z Dictionary of Synonyms - lostadj.

1) gone, departed, vanished, strayed; missing, mislaid, misplaced, irrecoverable: They found my lost dog. The airline told me that my bag was lost. 2) wasted, misspent, gone by the board, squandered, down the drain, spent, exhausted, Colloq out of the window: The new arrangement is resulting in a lot of time lost. I watched another lost opportunity slip by. 3) confused, baffled, perplexed, puzzled, mystified, bewildered, confounded, adrift, helpless, disoriented, at sea, astray: I am totally lost when it comes to high finance. 4) forgotten, bygone, extinct, past, obsolete, vanished, buried: Good writing needn't be a lost art. 5) dead, extinct, departed, fallen, late: We held a memorial service for our lost comrades. 6) destroyed, demolished, devastated, ruined, wrecked, irreparable, unsalvageable, irreclaimable, irremediable: After the expos‚ in the newspaper, his name was consigned to the limbo of lost reputations. 7) damned, cursed, accursed, abandoned, corrupt, fallen, wanton, unchaste, dissolute: Unrepentant sinners are lost souls. 8) hopeless, distraught, distracted, desperate, frantic, frenzied: He had the lost look of a cornered fugitive.