lost cause
同义词：
disoriented | confused | bewildered | missing | mislaid | bemused | astray | adrift | rapt | forgotten | baffled | confounded | forfeited | preoccupied | gone | vanished | disappeared | misplaced | strayed | unremembered | wasted | squandered | spellbound | misspent | entranced | consumed | exhausted | expended | spent | forlorn | vulnerable | abandoned | disorientated | perplexed | puzzled | mystified | nonplussed | offtrack | off-course | irreclaimable | irretrievable | irrecoverable | irrevocable | irreversible | hopeless | down the drain | destroyed | ruined | wrecked | undone | finished | ended | obliterated | effaced | extirpated | wiped out | abstracted | engrossed | absent | absorbed | mixed-up | dreaming | faraway | mazed | distraught | distracted | helpless | wild | frenzied | doomed | befuddled | frantic | missed | crazy | mad | maddened | at sea | deep in thought |
反义词：