An organism that is able to live and develop.
"The scientist carefully nurtured the viable embryo until it was ready to hatch."
In plain English: There is no noun form of viable; it is only an adjective used to describe something that can succeed or survive.
"There is no such thing as viable used as a noun in standard English, so I cannot write an example for it; however, here is a sentence using its most common adjective form: This business plan will not be viable without more funding."
capable of being done with means at hand and circumstances as they are
"The proposal seemed viable because our current budget can cover all the necessary expenses without any additional funding."
Able to live on its own (as for a newborn).
"The premature infant was finally viable and able to breathe without assistance."
In plain English: Viable means something is good enough to work successfully and survive on its own.
"The business plan was rejected because their funding model is not financially viable."
Usage: Use viable to describe anything capable of successful growth or development, such as an embryo in the womb or a business plan with realistic chances of success. This term emphasizes practical feasibility rather than just theoretical possibility when distinguishing it from synonyms like "possible."
The word comes from the French viable, which was borrowed from the Latin vīta meaning "life." Its original sense was influenced by the Latin viābilis, referring to something that is passable or able to be traveled.