unserviceable

absurd illogical impossible improbable quixotic speculative unattainable unreal unusable unwise unworkable useless

abstract chimerical idealistic impracticable inapplicable inefficacious infeasible inoperable ivory-tower no-go nonfunctional nonviable otherworldly romantic starry-eyed theoretical unbusinesslike unfeasible visionary wild won't fly

logical possible rational reasonable sensible tenable

practical

impossible improbable infeasible unfeasible unworkable

abstract absurd chimerical idealistic illogical inapplicable inefficacious inoperable irrealizable ivory tower no-go nonfunctional nonviable not a prayer otherworldly out of the question quixotic romantic speculative starry-eyed theoretical unattainable unbusinesslike unreal unusable unwise useless visionary wild won't fly

practicable practical probable realistic reasonable tenable viable

abstract absurd chimerical idealistic illogical impossible impractical improbable inapplicable inefficacious infeasible inoperable irrealizable ivory-tower no-go nonfunctional nonviable not a prayer otherworldly out of the question quixotic romantic speculative starry-eyed theoretical unattainable unbusinesslike unfeasible unreal unusable unwise unworkable useless visionary wild won't fly

absurd illogical impossible impractical unattainable unusable useless

abstract chimerical idealistic improbable inapplicable inefficacious infeasible inoperable irrealizable ivory-tower no-go nonfunctional nonviable not a prayer otherworldly out of the question quixotic romantic speculative starry-eyed theoretical unbusinesslike unfeasible unnegotiable unreal visionary wild won't fly

logical rational reasonable sensible