This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Alternative spelling of inviable.

"Right now, the most promising lead is that it involved the regulation of developmental processes, yet all attempts to change those early processes by mutation have resulted in unviable or infertile freaks."

unpublishable    hard-hit    unfeasible    astroengineering    reparable    infeasible    exploitable    screenwriting/    a-gallon    full-term