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"feasible" is also used as a crossword clue. If that's what you saw, the answer is often viable (6 letters).
Definitions
capable of being done with means at hand and circumstances as they are
Word origin
From Anglo-Norman fesable, from Latin facere, Old French fesable, faisable (“doable”), from fere, faire (“to do”) + -able.
Used in a sentence
“His plan to rid Trafalgar Square of pigeons by bringing in peregrine falcons to eat them was dismissed as not feasible.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Doable”8 letters
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