viable
US /ˈvaɪ.ə.bəl/
UK /ˈvaɪ.ə.bəl/

1.
capable of working successfully; feasible
:
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The company needs to find a viable solution to its financial problems.
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Is this plan truly viable in the long term?
2.
(of a baby or fetus) able to live successfully outside the womb
:
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The doctors were concerned about whether the premature baby would be viable.
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At 24 weeks, a fetus is generally considered viable.