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Viable (adjective)
Able to live on its own (as for a newborn).
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Viable (adjective)
Able to be done, possible.
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Viable (adjective)
Able to live and develop.
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Viable (noun)
An organism that is able to live and develop.
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Feasible (adjective)
That can be done in practice.
“His plan to rid Trafalgar Square of pigeons by bringing in peregrine falcons to eat them was dismissed as not feasible.”
Wiktionary
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Feasible (adjective)
possible and practical to do easily or conveniently
“the Dutch have demonstrated that it is perfectly feasible to live below sea level”
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Feasible (adjective)
likely; probable
“the most feasible explanation”
Oxford Dictionary
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