out the window

fruitless hollow impractical ineffective ineffectual insufficient trivial unproductive unprofitable unsuccessful useless vain worthless

abortive barren bootless delusive empty exhausted forlorn idle impracticable in vain no dice nugatory on a treadmill otiose profitless resultless save one's breath sterile to no avail to no effect to no purpose trifling unavailing unimportant unneeded unreal unsatisfactory unsubstantial valueless

effective fruitful helpful productive profitable successful useful valuable worthwhile

hopeful

absent consumed decamped deceased departed disappeared disintegrated displaced dissipated dissolved done elapsed ended finished flown lacking left lost missing moved passed quit removed retired shifted spent split transferred traveling vanished withdrawn

AWOL astray away burned up dead defunct down the drain dried-up extinct no more nonextant not a sign of not here over past taken a powder taken leave turned to dust

alive existing living present

around current

absent adrift disoriented hidden invisible misplaced vanished

disappeared forfeit forfeited gone lacking minus mislaid missed obscured strayed wandering

astray at sea cast away down the drain fallen between cracks gone astray irrecoverable irretrievable irrevocable kiss goodbye nowhere to be found off-course unredeemed wayward without

seen

found